Merge branch '5.4' into 6.0

* 5.4: (33 commits)
  do not pass a boolean to the constructor of the Dotenv class
  [Notifier] Fix low-deps tests
  Deprecate Composer 1
  [Filesystem] Add third argument `$lockFile` to `Filesystem::appendToFile()`
  [TwigBundle] fix auto-enabling assets/expression/routing/yaml/workflow extensions
  [PhpUnitBridge] fix symlink to bridge in docker by making its path relative
  [Dotenv] Duplicate $_SERVER values in $_ENV if they don't exist
  Fix markup
  [Notifier] Add Expo bridge
  Add polish translations (#43725)
  Rename translation:update to translation:extract
  [String] Add PLURAL_MAP "zombies" -- fix #43789
  Added support for `statusCode` default parameter when loading a template directly from route using the `Symfony\Bundle\FrameworkBundle\Controller\TemplateController` controller.
  [Validator] Update validators.bs.xlf
  Cache voters that will always abstain
  [Messenger] Fix `TraceableMessageBus` implementation so it can compute caller even when used within a callback
  [Validator] Add the missing translations for Russian (ru)
  [Validator] Added missing translations for Latvian (lv)
  [Validator] Added missing translations
  [Validator] Add missing translations for Vietnamese (VI)
  ...

Author: xabbuh

bin/simple-phpunit.php

@@ -122,7 +122,7 @@
 }
 
 $oldPwd = getcwd();
-$PHPUNIT_DIR = $getEnvVar('SYMFONY_PHPUNIT_DIR', $root.'/vendor/bin/.phpunit');
+$PHPUNIT_DIR = rtrim($getEnvVar('SYMFONY_PHPUNIT_DIR', $root.'/vendor/bin/.phpunit'), '/'.\DIRECTORY_SEPARATOR);
 $PHP = defined('PHP_BINARY') ? \PHP_BINARY : 'php';
 $PHP = escapeshellarg($PHP);
 if ('phpdbg' === \PHP_SAPI) {
@@ -239,6 +239,10 @@
         $passthruOrFail("$COMPOSER config --unset platform.php");
     }
     if (file_exists($path = $root.'/vendor/symfony/phpunit-bridge')) {
+        $p = str_repeat('../', substr_count("$PHPUNIT_DIR/$PHPUNIT_VERSION_DIR", '/', strlen($root))).'vendor/symfony/phpunit-bridge';
+        if (realpath($p) === realpath($path)) {
+            $path = $p;
+        }
         $passthruOrFail("$COMPOSER require --no-update symfony/phpunit-bridge \"*@dev\"");
         $passthruOrFail("$COMPOSER config repositories.phpunit-bridge path ".escapeshellarg(str_replace('/', \DIRECTORY_SEPARATOR, $path)));
         if ('\\' === \DIRECTORY_SEPARATOR) {