Merge branch '4.4' into 5.1

* 4.4:
  fix merge
  drop logger mock in favor of using the BufferingLogger
  catch ValueError thrown on PHP 8
  [Yaml Parser] Fix edge cases when parsing multiple documents
  fix parsing comments not prefixed by a space
  [Translator] Make sure a null locale is handled properly
  deal with errors being thrown on PHP 8
  [Cache] Allow cache tags to be objects implementing __toString()
  [HttpKernel] Do not override max_redirects option in HttpClientKernel
  remove superfluous cast
  [HttpClient] Support for CURLOPT_LOCALPORT.
  Upgrade PHPUnit to 8.5 (php 7.2) and 9.3 (php >= 7.3).
  Fixed exception message formatting
  [FrameworkBundle] Fix error in xsd which prevent to register more than one metadata
  [Console] work around disabled putenv()
  [PhpUnitBridge] Fix error with ReflectionClass
  [HttpClient][HttpClientTrait] don't calculate alternatives if option is auth_ntlm
  Change 'cache_key' to AbstractRendererEngine::CACHE_KEY_VAR
  Upgrade PHPUnit to 8.5 (php 7.2) and 9.3 (php >= 7.3).

Author: xabbuh

Extension/Core/Type/BaseType.php

@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\Form\Extension\Core\Type;
 
+use Symfony\Component\Form\AbstractRendererEngine;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\Form\FormInterface;
@@ -112,7 +113,7 @@ public function buildView(FormView $view, FormInterface $form, array $options)
             // collection form have different types (dynamically), they should
             // be rendered differently.
             // https://github.com/symfony/symfony/issues/5038
-            'cache_key' => $uniqueBlockPrefix.'_'.$form->getConfig()->getType()->getBlockPrefix(),
+            AbstractRendererEngine::CACHE_KEY_VAR => $uniqueBlockPrefix.'_'.$form->getConfig()->getType()->getBlockPrefix(),
         ]);
     }