Merge branch '3.4' into 4.4

* 3.4:
  [3.4] Fix support for PHP8 union types
  [PhpUnitBridge] Streamline ansi/no-ansi of composer according to phpunit --colors option
  [3.4] Small update in our internal terminology
  [Cache] fix compat with DBAL v3
  [VarDumper] Fix CliDumper coloration
  [DI] tighten detection of local dirs to prevent false positives
  [FrameworkBundle] preserve dots in query-string when redirecting
  bumped Symfony version to 3.4.43
  updated VERSION for 3.4.42
  update CONTRIBUTORS for 3.4.42
  updated CHANGELOG for 3.4.42

Author: nicolas-grekas

Matcher/Dumper/CompiledUrlMatcherDumper.php

@@ -244,7 +244,7 @@ private function compileStaticRoutes(array $staticRoutes, array &$conditions): a
      * Last but not least:
      *  - Because it is not possibe to mix unicode/non-unicode patterns in a single regexp, several of them can be generated.
      *  - The same regexp can be used several times when the logic in the switch rejects the match. When this happens, the
-     *    matching-but-failing subpattern is blacklisted by replacing its name by "(*F)", which forces a failure-to-match.
+     *    matching-but-failing subpattern is excluded by replacing its name by "(*F)", which forces a failure-to-match.
      *    To ease this backlisting operation, the name of subpatterns is also the string offset where the replacement should occur.
      */
     private function compileDynamicRoutes(RouteCollection $collection, bool $matchHost, int $chunkLimit, array &$conditions): array