Issue #3389839 by catch: Mark some more tests #slow

...Functional/Update/CKEditor5UpdateImageToolbarItemTest.php

...nt_moderation/tests/src/Functional/ModerationFormTest.php

...les/field/tests/src/Functional/Number/NumberFieldTest.php

...dules/field_ui/tests/src/Functional/ManageDisplayTest.php

...odules/field_ui/tests/src/Functional/ManageFieldsTest.php

...modules/file/tests/src/Functional/FileFieldWidgetTest.php

...file/tests/src/Functional/FileUploadJsonBasicAuthTest.php

...es/file/tests/src/Functional/FileUploadJsonCookieTest.php

...es/file/tests/src/Functional/RemoteFileSaveUploadTest.php

.../modules/file/tests/src/Functional/SaveUploadFormTest.php

core/modules/file/tests/src/Functional/SaveUploadTest.php

...odules/help/tests/src/Functional/HelpTopicsSyntaxTest.php

core/modules/jsonapi/tests/src/Functional/ActionTest.php

...es/jsonapi/tests/src/Functional/BaseFieldOverrideTest.php

...les/jsonapi/tests/src/Functional/BlockContentTypeTest.php

core/modules/jsonapi/tests/src/Functional/BlockTest.php

.../modules/jsonapi/tests/src/Functional/CommentTypeTest.php

core/modules/jsonapi/tests/src/Functional/ConfigTestTest.php

...jsonapi/tests/src/Functional/ConfigurableLanguageTest.php

.../modules/jsonapi/tests/src/Functional/ContactFormTest.php