(Testing) Update test editor config to match Drupal 11 config schema

Problem/Motivation

In testing, when installing the test module (ckeditor5_paste_filter_test) in Drupal 11, you may not be able to due to config schema validation:

In ConfigSchemaChecker.php line 98:
  Schema errors for editor.editor.test with the following errors: 0 [image_upload] 'status' is a required key.

Steps to reproduce

1. In a settings.php file or include, add: $settings["extension_discovery_scan_tests"] = TRUE;
2. Install the ckeditor5_paste_filter_test module
3. Navigate to /admin/config/content/formats/manage/test
4. Save the config form

Expected behaviour: Saves without error

Actual behaviour:

Warning: Undefined array key "status" in editor_form_filter_admin_format_submit() (line 109 of core/modules/editor/editor.module).

Proposed resolution

Amend the config file to align with the Drupal 11 schema.

Remaining tasks

• Make the necessary changes
• Test locally
• Create a merge request
• Review the changes
• Merge!

User interface changes

n/a

API changes

n/a

Data model changes

n/a