…rait for PHPUnit 9.3 (sanmai, derrabus)This PR was merged into the 3.4 branch.Discussion----------[PhpUnitBridge] Adjust output parsing of CoverageListenerTrait for PHPUnit 9.3| Q             | A| ------------- | ---| Branch?       | 3.4| Bug fix?      | yes| New feature?  | no| Deprecations? | no| Tickets       |#37637,#37564| License       | MIT| Doc PR        | N/AThis PR makes `CoverageListenerTrait` pass with PHPUnit 9.3. It contains a backport of#38054.The problem that is addressed here is that a one of the fixture classes is now included in the output despite having a coverage of zero. The test now accepts both cases:* The class is omitted from the output* The class appears with 0.00% coverage.Commits-------a3831dc [PhpUnitBridge] Adjust output parsing for PHPUnit 9.3.99c98bd [PhpUnitBridge] CoverageListenerTrait update for PHPUnit 8.5/9.x

…rait (sanmai)This PR was squashed before being merged into the 4.4 branch.Discussion----------[PhpUnitBridge] Skip internal classes in CoverageListenerTraitPHPUnit 9+ is picky about test covering, say, a `\RuntimeException`. Fails with the likes:    "@Covers RuntimeException" is invalidJudging by the commitsebastianbergmann/phpunit@e06850c this change is required for PHPUnit 9.1 and up. [Here's it being tested.](https://github.com/sebastianbergmann/code-unit/blob/60c6fb972b3262e423be3000e7b8c67cbc477580/tests/unit/ClassMethodUnitTest.php#L49-L54)| Q             | A| ------------- | ---| Branch?       | 4.4| Bug fix?      | yes| New feature?  | no| Deprecations? | no| Tickets       | Follow-up to#38054| License       | MITCommits-------a0dedb9 [PhpUnitBridge] Skip internal classes in CoverageListenerTrait