The `WP_UnitTestCase_Base::checkRequirements()` method calls the `parent::checkRequirements()` method, but this method became `private` in PHPUnit 7.0 via commit [932238a6a3sebastianbergmann/phpunit@932238a].
Aside from that, the `TestCase::getAnnotations()` method which is called next is now also removed in PHPUnit 9.5.
WP core does not use the method anymore, and the method only remains to prevent potentially breaking external integration tests relying on the method. However, in effect, the method is not functional anymore in PHPUnit 7.0+.
Follow-up to [893/tests], [894/tests], [896/tests], [918/tests], [30526], [40520], [40564], [43005], [44701], [51559-51577].
Props jrf.
See #46149.
git-svn-id: https://develop.svn.wordpress.org/trunk@51602 602fd350-edb4-49c9-b593-d223f7449a82