* 5.4:
  Fix LICENSE CI check
  fixes retrieving multiple values for extra fields
  [String] Remove duplicates in fold maps
  fail with a meaningful error when a needed package is missing
  [DependencyInjection] Fix combinatory explosion when autowiring union and intersection types
  Update license years (last time)
  [Tests] New iteration of removing `$this` occurrences in future static data providers

* 5.4:
  Remove 6.0 and 6.1 from the PR template
  [Validator] Make ConstraintValidatorTestCase compatible with PHPUnit 10
  [WebProfilerBundle] Fix some minor HTML issues
  [WebProfilerBundle] Disable Turbo for debug toolbar links
  [PropertyInfo] Add meaningful message when `phpstan/phpdoc-parser` is not installed when using `PhpStanExtractor`

* 5.4:
  fix test
  [Response] `getMaxAge()` returns non-negative integer

* 5.4:
  Fix some phpdoc
  [ErrorHandler] Do not patch return statements in closures
  [DI] keep `proxy` tag on original definition when decorating

* 5.4:
  Migrate to `static` data providers using `rector/rector`

* 5.4:
  Avoid call on null
  [Notifier] Document Firebase options object in readme
  [ErrorHandler] Fix sending Vary header with SerializerErrorRenderer
  Fix intl data tests
  [DoctrineBridge] fix issue with missing stopwatch events
  [HttpClient] Fix canceling MockResponse

* 5.4:
  [Console] Fix computing column width containing multibyte chars
  [Messenger] Fix deprecation layer of RedeliveryStamp
  [Mime] Form field values with integer keys not resolved correctly
  [Messenger] [Redis] Fixed problem where worker stops handling messages on first empty message
  [PHPUnitBridge] Fix PHPUnit 10.1 compatibility
  [VarDumper] Make the server TCP connection sync
  [Messenger] Fix warning message on failed messenger show command
  [Mailer] [Mailjet] Use body MessageID instead of X-MJ-Request-GUID
  [HttpFoundation] Fix BinaryFileResponse
  [Form] fix merge
  [HttpFoundation] Fix memory limit problems in BinaryFileResponse
  [PropertyAccess] Readonly properties must have no PropertyWriteInfo
  [Form] Cast choices value callback result to string
  [Serializer] Unexpected value should throw UnexpectedValueException
  [ErrorHandler] Don't throw deprecations for HttplugClient
  [Serializer] Fix denormalization of object with typed constructor arg (not castable) and with COLLECT_DENORMALIZATION_ERRORS
  Avoid leading .. for temporary files from Filesystem recursive remove