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/Transport/Smtp/Stream/SocketStreamTest.php

@@ -19,7 +19,7 @@ class SocketStreamTest extends TestCase
     public function testSocketErrorNoConnection()
     {
         $this->expectException('Symfony\Component\Mailer\Exception\TransportException');
-        $this->expectExceptionMessageRegExp('/Connection refused|unable to connect/');
+        $this->expectExceptionMessageMatches('/Connection refused|unable to connect/');
         $s = new SocketStream();
         $s->setTimeout(0.1);
         $s->setPort(9999);
@@ -29,7 +29,7 @@ public function testSocketErrorNoConnection()
     public function testSocketErrorBeforeConnectError()
     {
         $this->expectException('Symfony\Component\Mailer\Exception\TransportException');
-        $this->expectExceptionMessageRegExp('/no valid certs found cafile stream|Unable to find the socket transport "ssl"/');
+        $this->expectExceptionMessageMatches('/no valid certs found cafile stream|Unable to find the socket transport "ssl"/');
         $s = new SocketStream();
         $s->setStreamOptions([
             'ssl' => [