Merge branch '6.4' into 7.1

* 6.4:
  [Validator] Fix 58691 (missing plural-options in serbian language translation)
  profiler form data collector extart value property if it is setted
  [Process] Fix escaping /X arguments on Windows
  [Config] Handle Phar absolute path in `FileLocator`
  [Runtime] Remove unused `SKIPIF` from `dotenv_overload.phpt`

Author: nicolas-grekas

FileLocator.php

@@ -87,6 +87,7 @@ private function isAbsolutePath(string $file): bool
                 && ('\\' === $file[2] || '/' === $file[2])
             )
             || parse_url($file, \PHP_URL_SCHEME)
+            || str_starts_with($file, 'phar:///') // "parse_url()" doesn't handle absolute phar path, despite being valid
         ) {
             return true;
         }

Tests/FileLocatorTest.php

@@ -38,6 +38,7 @@ public static function getIsAbsolutePathTests(): array
             ['\\server\\foo.xml'],
             ['https://server/foo.xml'],
             ['phar://server/foo.xml'],
+            ['phar:///server/foo.xml'],
         ];
     }