Merge branch '6.4' into 7.3

* 6.4:
  Restore Relay 8.5 test
  account for PHP_ZTS being a boolean value on PHP 8.4+
  [Intl] Update data to ICU 78.1
  [Console] Fix exception message when abbreviation matches multiple hidden commands
  [FrameworkBundle] Fix TypeError when traversing scalar values in debug:config
  [DependencyInjection] Fix loop corruption in CheckTypeDeclarationsPass
  [DependencyInjection] Fix invalid PHP syntax for nullable TypedReference in PhpDumper
  Fix typo in comment
  [Translation][Routing] Fix typos
  [String] Fix normalization in trimPrefix/trimSuffix

Author: xabbuh

Tests/FilesystemTestCase.php

@@ -144,7 +144,7 @@ protected function markAsSkippedIfSymlinkIsMissing($relative = false)
         }
 
         // https://bugs.php.net/69473
-        if ($relative && '\\' === \DIRECTORY_SEPARATOR && 1 === \PHP_ZTS) {
+        if ($relative && '\\' === \DIRECTORY_SEPARATOR && \PHP_ZTS) {
             $this->markTestSkipped('symlink does not support relative paths on thread safe Windows PHP versions');
         }
     }