bug #36408 [PhpUnitBridge] add PolyfillTestCaseTrait::expectExceptionMessageMatches to provide FC with recent phpunit versions (soyuka)

This PR was squashed before being merged into the 4.4 branch.

Discussion
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[PhpUnitBridge] add PolyfillTestCaseTrait::expectExceptionMessageMatches to provide FC with recent phpunit versions

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tickets       | na
| License       | MIT
| Doc PR        | na

expectExceptionMessageRegExp is deprecated coming phpunit 8.5.3  see sebastianbergmann/phpunit#4133

Not sure if I need to add something else lmk.

Commits
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cfd5a29eaf [PhpUnitBridge] add PolyfillTestCaseTrait::expectExceptionMessageMatches to provide FC with recent phpunit versions

Author: nicolas-grekas

Tests/ProcessTest.php

@@ -50,7 +50,7 @@ protected function tearDown(): void
     public function testInvalidCwd()
     {
         $this->expectException('Symfony\Component\Process\Exception\RuntimeException');
-        $this->expectExceptionMessageRegExp('/The provided cwd ".*" does not exist\./');
+        $this->expectExceptionMessageMatches('/The provided cwd ".*" does not exist\./');
         try {
             // Check that it works fine if the CWD exists
             $cmd = new Process(['echo', 'test'], __DIR__);