* 6.4:
  switch to Composer 2 metadata
  Fix `ContainerDebugCommandTest::testNoDumpedXML`
  doc: update UserInterface header comments
  Fix: Lack of recipient in case DSN does not have optional LIST_ID parameter.
  [PhpUnitBridge] Mark as dev package
  [DependencyInjection] Make `YamlDumper` quote resolved env vars if necessary
  Bump Symfony version to 6.4.23
  Update VERSION for 6.4.22
  Update CONTRIBUTORS for 6.4.22
  Update CHANGELOG for 6.4.22
  fixed Via regex

* 7.2:
  switch to Composer 2 metadata
  [Validator] Add tests for `MacAddress`
  Fix `ContainerDebugCommandTest::testNoDumpedXML`
  doc: update UserInterface header comments
  Fix: Lack of recipient in case DSN does not have optional LIST_ID parameter.
  [PhpUnitBridge] Mark as dev package
  [DependencyInjection] Make `YamlDumper` quote resolved env vars if necessary
  Bump Symfony version to 7.2.8
  Update VERSION for 7.2.7
  Update CHANGELOG for 7.2.7
  Bump Symfony version to 6.4.23
  Update VERSION for 6.4.22
  Update CONTRIBUTORS for 6.4.22
  Update CHANGELOG for 6.4.22
  fixed Via regex

…::sendHeaders()` is called while output has already been sent (ivo95v)"

This reverts commit cf554e1be6338c1176832dd4cdf713d88d3144ad, reversing
changes made to 392d0c9c407d6b06a072600fe9dc2a779b231ce0.