Address code style issues

Problem/Motivation

phpcs reports,

FILE: src/Service/LoginService.php
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FOUND 2 ERRORS AND 1 WARNING AFFECTING 2 LINES
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153 | ERROR | [ ] Comment indentation error, expected only 1 spaces (Drupal.Commenting.InlineComment.SpacingBefore)
154 | WARNING | [x] There must be no blank line following an inline comment
| | (Drupal.Commenting.InlineComment.SpacingAfter)
154 | ERROR | [x] Inline comments must end in full-stops, exclamation marks, question marks, colons, or closing
| | parentheses (Drupal.Commenting.InlineComment.InvalidEndChar)
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PHPCBF CAN FIX THE 2 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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FILE: src/Repository/TokenRepository.php
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FOUND 8 ERRORS AFFECTING 8 LINES
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123 | ERROR | Missing parameter comment (Drupal.Commenting.FunctionComment.MissingParamComment)
125 | ERROR | Description for the @return value is missing (Drupal.Commenting.FunctionComment.MissingReturnComment)
134 | ERROR | Missing short description in doc comment (Drupal.Commenting.DocComment.MissingShort)
135 | ERROR | Missing parameter comment (Drupal.Commenting.FunctionComment.MissingParamComment)
137 | ERROR | Description for the @return value is missing (Drupal.Commenting.FunctionComment.MissingReturnComment)
150 | ERROR | Missing short description in doc comment (Drupal.Commenting.DocComment.MissingShort)
151 | ERROR | Missing parameter comment (Drupal.Commenting.FunctionComment.MissingParamComment)
153 | ERROR | Description for the @return value is missing (Drupal.Commenting.FunctionComment.MissingReturnComment)
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FILE: src/Model/Token.php
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FOUND 10 ERRORS AND 1 WARNING AFFECTING 9 LINES
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9 | WARNING | [ ] The class short comment should describe what the class does and not simply repeat the class name
| | (Drupal.Commenting.ClassComment.Short)
35 | ERROR | [ ] Missing short description in doc comment (Drupal.Commenting.DocComment.MissingShort)
40 | ERROR | [ ] Missing short description in doc comment (Drupal.Commenting.DocComment.MissingShort)
45 | ERROR | [ ] Parameter $createdAt is not described in comment
| | (Drupal.Commenting.FunctionComment.ParamMissingDefinition)
45 | ERROR | [ ] Parameter $refreshedAt is not described in comment
| | (Drupal.Commenting.FunctionComment.ParamMissingDefinition)
55 | ERROR | [x] Parameter $createdAt has null default value, but is not marked as nullable.
| | (SlevomatCodingStandard.TypeHints.NullableTypeForNullDefaultValue.NullabilityTypeMissing)
55 | ERROR | [x] Parameter $refreshedAt has null default value, but is not marked as nullable.
| | (SlevomatCodingStandard.TypeHints.NullableTypeForNullDefaultValue.NullabilityTypeMissing)
93 | ERROR | [ ] Missing short description in doc comment (Drupal.Commenting.DocComment.MissingShort)
94 | ERROR | [ ] Description for the @return value is missing
| | (Drupal.Commenting.FunctionComment.MissingReturnComment)
100 | ERROR | [ ] Missing short description in doc comment (Drupal.Commenting.DocComment.MissingShort)
101 | ERROR | [ ] Description for the @return value is missing
| | (Drupal.Commenting.FunctionComment.MissingReturnComment)
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PHPCBF CAN FIX THE 2 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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FILE: src/Form/ConfigForm.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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12 | WARNING | The class short comment should describe what the class does and not simply repeat the class name
| | (Drupal.Commenting.ClassComment.Short)
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FILE: src/Exception/TokenNotFoundException.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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9 | WARNING | The class short comment should describe what the class does and not simply repeat the class name
| | (Drupal.Commenting.ClassComment.Short)
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FILE: src/Exception/TokenGeneratorException.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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9 | WARNING | The class short comment should describe what the class does and not simply repeat the class name
| | (Drupal.Commenting.ClassComment.Short)
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FILE: src/Exception/InvalidRequestIdException.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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11 | WARNING | The class short comment should describe what the class does and not simply repeat the class name
| | (Drupal.Commenting.ClassComment.Short)
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FILE: src/Exception/EntityNotFoundException.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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11 | WARNING | The class short comment should describe what the class does and not simply repeat the class name
| | (Drupal.Commenting.ClassComment.Short)
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FILE: src/Exception/AuthenticationException.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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11 | WARNING | The class short comment should describe what the class does and not simply repeat the class name
| | (Drupal.Commenting.ClassComment.Short)
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FILE: src/Exception/AccessDeniedException.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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11 | WARNING | The class short comment should describe what the class does and not simply repeat the class name
| | (Drupal.Commenting.ClassComment.Short)
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FILE: src/EventSubscriber/CacheEndpointSubscriber.php
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FOUND 2 ERRORS AND 1 WARNING AFFECTING 2 LINES
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20 | WARNING | The class short comment should describe what the class does and not simply repeat the class name
| | (Drupal.Commenting.ClassComment.Short)
42 | ERROR | Doc comment short description must end with a full stop (Drupal.Commenting.DocComment.ShortFullStop)
42 | ERROR | Doc comment short description must be on a single line, further text should be a separate paragraph
| | (Drupal.Commenting.DocComment.ShortSingleLine)
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FILE: src/Controller/AuthController.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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23 | WARNING | The class short comment should describe what the class does and not simply repeat the class name
| | (Drupal.Commenting.ClassComment.Short)
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FILE: src/Authentication/Provider/AccessTokenProvider.php
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FOUND 2 ERRORS AND 1 WARNING AFFECTING 3 LINES
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19 | WARNING | [ ] The class short comment should describe what the class does and not simply repeat the class name
| | (Drupal.Commenting.ClassComment.Short)
132 | ERROR | [x] Object operator not indented correctly; expected 8 spaces but found 10
| | (Drupal.WhiteSpace.ObjectOperatorIndent.Indent)
135 | ERROR | [x] Expected newline after closing brace
| | (Drupal.ControlStructures.ControlSignature.NewlineAfterCloseBrace)
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PHPCBF CAN FIX THE 2 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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FILE: rest_api_access_token.install
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FOUND 1 ERROR AFFECTING 1 LINE
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83 | ERROR | Doc comment short description must be on a single line, further text should be a separate paragraph
| | (Drupal.Commenting.DocComment.ShortSingleLine)
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Steps to reproduce

see https://git.drupalcode.org/issue/rest_api_access_token-3527128/-/jobs/53...

Remaining tasks

make a MR