Merge branch '4.4' into 5.3

* 4.4:
  Bump license year
  [HttpClient] Turn negative timeout to a very long timeout
  Features goes to 6.x branch
  [Validator] throw when Constraint::_construct() has not been called
  Bump Symfony version to 4.4.37
  Update VERSION for 4.4.36
  Update CONTRIBUTORS for 4.4.36
  Update CHANGELOG for 4.4.36
  Allow symfony/runtime plugin

Author: fabpot

Constraint.php

@@ -235,6 +235,10 @@ public function __isset(string $option)
      */
     public function addImplicitGroupName(string $group)
     {
+        if (null === $this->groups && \array_key_exists('groups', (array) $this)) {
+            throw new \LogicException(sprintf('"%s::$groups" is set to null. Did you forget to call "%s::__construct()"?', static::class, self::class));
+        }
+
         if (\in_array(self::DEFAULT_GROUP, $this->groups) && !\in_array($group, $this->groups)) {
             $this->groups[] = $group;
         }

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2004-2021 Fabien Potencier
+Copyright (c) 2004-2022 Fabien Potencier
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal