Support tests for d10

Problem/Motivation

I have performed locally test under drupal 10 and some test failed.

1) Drupal\Tests\poll\Functional\PollFieldUITest::testPollFieldUI
The link Add field was not found on the page.
Failed asserting that an array has the key 0.

/app/vendor/phpunit/phpunit/src/Framework/Constraint/Constraint.php:121
/app/vendor/phpunit/phpunit/src/Framework/Constraint/Constraint.php:55
/app/web/core/tests/Drupal/Tests/UiHelperTrait.php:406
/app/web/modules/contrib/poll/tests/src/Functional/PollFieldUITest.php:62
/app/vendor/phpunit/phpunit/src/Framework/TestResult.php:728

There is no longer "Add field" but "Create a new field"

Proposed resolution

Review and refactor failing tests.

Question

Do we want to support tests for d9 and d10 at the same time?