Merge branch '6.0' into 6.1

* 6.0:
  Fix merge
  [Mime] Throw exception when body in Email attach method is not ok
  [VarDumper][VarExporter] Deal with DatePeriod->include_end_date on PHP 8.2
  [Cache] Throw when "redis_sentinel" is used with a non-Predis "class" option
  fix merge
  Bootstrap 4 fieldset for row errors
  [Form] Fix same choice loader with different choice values
  [Filesystem] Safeguard (sym)link calls
  Fix dumping extension config without bundle
  [HttpClient] Honor "max_duration" when replacing requests with async decorators
  [HttpClient] Add missing HttpOptions::setMaxDuration()
  [HttpKernel] Fix missing null type in `ErrorListener::__construct()`
  [HttpFoundation] [Session] Overwrite invalid session id

Author: nicolas-grekas

Filesystem.php

@@ -317,6 +317,8 @@ private function isReadable(string $filename): bool
      */
     public function symlink(string $originDir, string $targetDir, bool $copyOnWindows = false)
     {
+        self::assertFunctionExists('symlink');
+
         if ('\\' === \DIRECTORY_SEPARATOR) {
             $originDir = strtr($originDir, '/', '\\');
             $targetDir = strtr($targetDir, '/', '\\');
@@ -352,6 +354,8 @@ public function symlink(string $originDir, string $targetDir, bool $copyOnWindow
      */
     public function hardlink(string $originFile, string|iterable $targetFiles)
     {
+        self::assertFunctionExists('link');
+
         if (!$this->exists($originFile)) {
             throw new FileNotFoundException(null, 0, null, $originFile);
         }
@@ -703,8 +707,17 @@ private function getSchemeAndHierarchy(string $filename): array
         return 2 === \count($components) ? [$components[0], $components[1]] : [null, $components[0]];
     }
 
-    private static function box(callable $func, mixed ...$args): mixed
+    private static function assertFunctionExists(string $func): void
     {
+        if (!\function_exists($func)) {
+            throw new IOException(sprintf('Unable to perform filesystem operation because the "%s()" function has been disabled.', $func));
+        }
+    }
+
+    private static function box(string $func, mixed ...$args): mixed
+    {
+        self::assertFunctionExists($func);
+
         self::$lastError = null;
         set_error_handler(__CLASS__.'::handleError');
         try {