Merge branch '6.2' into 6.3

* 6.2:
  [Serializer] Handle datetime deserialization in U format
  [HttpFoundation] Fix file streaming after connection aborted
  Update HeaderBag::all PhpDoc
  [Messenger] Add `IS_REPEATABLE` flag to `AsMessageHandler` attribute
  Allow resources in Query::setParam
  Fix param type annotation
  [HttpClient] Fix setting duplicate-name headers when redirecting with AmpHttpClient

Author: nicolas-grekas

BinaryFileResponse.php

@@ -319,7 +319,7 @@ public function sendContent(): static
                 while ('' !== $data) {
                     $read = fwrite($out, $data);
                     if (false === $read || connection_aborted()) {
-                        break;
+                        break 2;
                     }
                     if (0 < $length) {
                         $length -= $read;

HeaderBag.php

@@ -63,7 +63,7 @@ public function __toString(): string
      *
      * @param string|null $key The name of the headers to return or null to get them all
      *
-     * @return ($key is null ? array<string, array<int, string|null>> : array<int, string|null>)
+     * @return ($key is null ? array<string, list<string|null>> : list<string|null>)
      */
     public function all(string $key = null): array
     {