…into fix/malformed-identifier

* 'v8.x' of https://github.com/MyIntervals/PHP-CSS-Parser: (46 commits)
  [CLEANUP] Autoformat the code (MyIntervals#749)
  [TASK] Prepare the 8.7.0 release (MyIntervals#742)
  [BUGFIX] Fix another implictly nullable parameter (MyIntervals#751)
  [CLEANUP] Autoformat the changelog (MyIntervals#750)
  [TASK] Configure PHPUnit to be more strict (MyIntervals#744)
  [BUGFIX] Avoid implicit nullable parameters (MyIntervals#746)
  [BUGFIX] Revert broken support for multiple comments (MyIntervals#741)
  [TASK] Add some more tests for parsing comments (MyIntervals#739)
  [TASK] Use fixed PHPUnit versions (MyIntervals#726)
  [TASK] Update PHPUnit (MyIntervals#725)
  [TASK] State since which version code is `@internal`/`@deprecated` (MyIntervals#723)
  [TASK] Deprecate the expansion of shorthand properties (MyIntervals#719)
  [TASK] Mark parsing-internal classes and methods as `@internal` (MyIntervals#711)
  [TASK] Deprecate `Parser::setCharset()` and `Parser::getCharset()` (MyIntervals#703)
  [FEATURE] Run the tests on CI with PHP 8.4 as well (MyIntervals#701)
  [TASK] Run the tests with PHP versions up to 8.3 (MyIntervals#697)
  [TASK] Also allow higher versions of PHPUnit (MyIntervals#682)
  [BUGFIX] Fix type errors in PHP strict mode (MyIntervals#695)
  [TASK] Block installations on unsupported higher PHP versions (MyIntervals#692)
  [BUGFIX] Avoid using `setUp()` in testcases (MyIntervals#683)
  ...