* 6.3:
  fix merge
  [VarDumper] Test intl formatter broken since dumper does not replace the nnbsp character by standard space
  [WebProfilerBundle] Fix intercept external redirects
  [Webhook] Added missing XML attribute in config XSD
  [String] Skip a test when an issue is detected in PCRE2
  [ExpressionLanguage] Fix null coalescing propagation
  [Mailer] Stop using the (local) AWS shared configuration in the PHPUnit tests.
  detect colors on not windows
  fix xterm detection
  refactor: hyper check
  Missing translations for Slovak (sk) #51954
  Remove redundant PHPdoc line
  properly handle SYMFONY_DOTENV_VARS being the empty string
  Avoid incompatibility with symfony/console 7
  bug #45057 [Messenger] Avoid reconnecting active Redis connections.
  [HttpKernel] Catch `TypeError` if the wrong type is used in `BackedEnumValueResolver`
  [Serializer] fix regression where nullable int cannot be serialized
  do not overwrite an application's default serialization context

* 6.3:
  remove unneeded @requires PHP from tests

* 5.4:
  allow environment variables starting with an underscore
  Update a test
  Remove #StandWithUkraine
  [Notifier][Smsc] Require login and password

* 6.3:
  [VarDumper] Fix CSS alignment in HtmlDumper
  allow environment variables starting with an underscore
  Update a test
  [Mailer][Postmark] Add missing changelog for webhook support
  Remove #StandWithUkraine
  [Notifier][Smsc] Require login and password