Merge branch '6.4' into 7.1

* 6.4:
  Bump Symfony version to 6.4.13
  Update VERSION for 6.4.12
  Update CHANGELOG for 6.4.12
  Bump Symfony version to 5.4.45
  Update VERSION for 5.4.44
  Update CONTRIBUTORS for 5.4.44
  Update CHANGELOG for 5.4.44
  allow the Novu bridge to be used with symfony/notifier 7.x
  [6.4][Routing][Uid] Mention RFC 9562
  [Runtime] Adapt test to support the --silent option introduced in Symfony 7.2

Author: wouterj

Requirement/Requirement.php

@@ -23,7 +23,7 @@ enum Requirement
     public const POSITIVE_INT = '[1-9][0-9]*';
     public const UID_BASE32 = '[0-9A-HJKMNP-TV-Z]{26}';
     public const UID_BASE58 = '[1-9A-HJ-NP-Za-km-z]{22}';
-    public const UID_RFC4122 = '[0-9a-f]{8}(?:-[0-9a-f]{4}){3}-[0-9a-f]{12}';
+    public const UID_RFC4122 = '[0-9a-f]{8}(?:-[0-9a-f]{4}){3}-[0-9a-f]{12}'; // RFC 9562 obsoleted RFC 4122 but the format is the same
     public const ULID = '[0-7][0-9A-HJKMNP-TV-Z]{25}';
     public const UUID = '[0-9a-f]{8}-[0-9a-f]{4}-[13-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}';
     public const UUID_V1 = '[0-9a-f]{8}-[0-9a-f]{4}-1[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}';