Add `--map-source-class-to-test` option to speed up Mutation Testing

Added:

• Reduce "Initial Tests Run" stage time by running only covering test files by @maks-rafalko in #1919 (docs)

Changed:

• Change table tests to use static methods by @sanmai in #1922
• Additional PHPUnit 10 compatibility fixes by @sanmai in #1923
• build: Upgrade to fidry/makefile 1.0 by @theofidry in #1925
• styles: Enable the trailing comma PHP-CS-Fixer rule by @theofidry in #1927
• styles: Exclude the Box debug directory from PHP-CS-Fixer by @theofidry in #1928
• build: Remove Symfony PHPUnitBridge by @theofidry in #1926
• styles: Update to PHP-CS-Fixer 3.52.0 by @theofidry in #1929
• styles: Leverage the PHP class keyword by @theofidry in #1931
• styles: Enable PHP-CS-Fixer array_indentation rule by @theofidry in #1936
• Remove php 8.3 and symfony 7.0 hacks in CI as no longer needed by @sidz in #1930
• styles: Enable and apply heredoc_indentation rule by @sanmai in #1939
• styles: Enable back the fully_qualified_strict_types PHP-CS-Fixer rule by @theofidry in #1934
• Fix InitialTestsRunnerTest by @sanmai in #1938

Full Changelog: 0.27.10...0.27.11