Merge branch '6.4' into 7.2

* 6.4:
  switch to Composer 2 metadata
  Fix `ContainerDebugCommandTest::testNoDumpedXML`
  doc: update UserInterface header comments
  Fix: Lack of recipient in case DSN does not have optional LIST_ID parameter.
  [PhpUnitBridge] Mark as dev package
  [DependencyInjection] Make `YamlDumper` quote resolved env vars if necessary
  Bump Symfony version to 6.4.23
  Update VERSION for 6.4.22
  Update CONTRIBUTORS for 6.4.22
  Update CHANGELOG for 6.4.22
  fixed Via regex

Author: alexandre-daubois

composer.json

@@ -2,7 +2,9 @@
     "name": "symfony/phpunit-bridge",
     "type": "symfony-bridge",
     "description": "Provides utilities for PHPUnit, especially user deprecation notices management",
-    "keywords": [],
+    "keywords": [
+        "testing"
+    ],
     "homepage": "https://symfony.com",
     "license": "MIT",
     "authors": [