Merge branch '5.3' into 5.4

* 5.3:
  fix cs
  Update validators.lv.xlf
  Fix API gateway service name
  Fix CS in composer.json
  Update validators.uz.xlf
  [ExpressionLanguage] Fix LexerTest number types
  [Process] intersect with getenv() to populate default envs
  Improve CI script a bit
  Fix Loco Provider
  [Cache] fix dbindex Redis
  Fix typos in a test message
  Never rely on dynamic properties

Author: nicolas-grekas

Exception/AuthenticationException.php

@@ -21,8 +21,17 @@
  */
 class AuthenticationException extends RuntimeException
 {
+    /** @internal */
+    protected $serialized;
+
     private $token;
 
+    public function __construct(string $message = '', int $code = 0, \Throwable $previous = null)
+    {
+        unset($this->serialized);
+        parent::__construct($message, $code, $previous);
+    }
+
     /**
      * @return TokenInterface|null
      */

Tests/Exception/CustomUserMessageAuthenticationExceptionTest.php

@@ -18,6 +18,8 @@
 
 class ChildCustomUserMessageAuthenticationException extends CustomUserMessageAuthenticationException
 {
+    public $childMember;
+
     public function __serialize(): array
     {
         return [$this->childMember, parent::__serialize()];