Merge branch '5.4' into 6.0

* 5.4:
  [Serializer] Save missing arguments in MissingConstructorArgumentsException
  remove support for deprecated "threadKey" parameter
  Remove useless comment in test
  [DomCrawler] Added Crawler::innerText() method
  [Form] Add the EnumType
  Fix iterrator in ServiceConfigurator
  [Console] Add support of RGB functional notation for output colors
  Add Slovak lang translation #41081
  [Validator] Add error's uid to `Count` and `Length` constraints with "exactly" option enabled
  [Validator] Add missing thai translation
  [Yaml] Add 0 to float repr
  [Translation] Add Burmese translation
  [Notifier] Update FirebaseTransport.php
  fix: #43086 remove shortcut e for option exclude of Yaml/LintCommand - solve conflict with --env -e
  Map `multipart/form-data` as `form` Content-Type
  [Serializer] Throw NotNormalizableValueException when type is not known or not in body in discriminator map
  [Yaml] Use more concise float representation in dump
  [FrameworkBundle] Remove translation data_collector BEFORE adding it to profiler

Author: derrabus

Loader/Configurator/AbstractServiceConfigurator.php

@@ -32,8 +32,8 @@ public function __destruct()
     {
         // default tags should be added last
         foreach ($this->defaultTags as $name => $attributes) {
-            foreach ($attributes as $attributes) {
-                $this->definition->addTag($name, $attributes);
+            foreach ($attributes as $attribute) {
+                $this->definition->addTag($name, $attribute);
             }
         }
         $this->defaultTags = [];