Merge branch '4.4'

* 4.4:
  [Form][Validator] Generate accept attribute with file constraint and mime types option
  [Security/Core] align defaults for sodium with PHP 7.4
  fix inline handling when dumping tagged values
  [HttpClient] fix canceling responses in a streaming loop
  [Messenger] Flatten collection of stamps collected by the traceable middleware
  [Messenger][Profiler] Remove cutting caster to dump full objects
  [WebProfilerBundle] mark all classes as internal
  Decoupling TwigBundle and using the new ErrorRenderer mechanism
  [HttpClient] rewind streams created from strings
  [PropertyAccess] Fix PropertyAccessorCollectionTest
  [HttpClient] rewind stream when using Psr18Client
  Typo in web profiler
  [4.3] Remove dead test fixtures
  [Routing] Fix CHANGELOG
  relax some date parser patterns
  adapt tests
  [Form] Repeat preferred choices in the main list
  Avoid getting right to left style

Author: nicolas-grekas

CHANGELOG.md

@@ -27,7 +27,7 @@ CHANGELOG
    Instead of overwriting them, use `__serialize` and `__unserialize` as extension points which are forward compatible
    with the new serialization methods in PHP 7.4.
  * exposed `utf8` Route option, defaults "locale" and "format" in configuration loaders and configurators
- * added support for invokable route loader services
+ * added support for invokable service route loaders
 
 4.2.0
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