Merge branch '5.4' into 6.0

* 5.4:
  [HttpClient] Remove deprecated usage of `GuzzleHttp\Promise\queue`
  [PropertyAccess] Fix handling of uninitialized property of anonymous class
  [FrameworkBundle] Allow default cache pools to be overwritten by user
  [DependencyInjection] fix test
  ResolveBindingsPass remove loading of class iterable
  [FrameworkBundle] Avoid calling rtrim(null, '/') in AssetsInstallCommand
  Optimization of resolveEnvPlaceholders
  Fix incorrect format
  [DependencyInjection] Fix nested env var with resolve processor
  Allow OutputFormatter::escape() to be used for escaping URLs used in <href>
  allow a zero time-limit
  Use correct tag for ExpoTransportFactory service
  [DependencyInjection] Ignore argument type check in CheckTypeDeclarationsPass if it's a Definition with a factory
  [Validators] Add translations for Slovak #43735

Author: nicolas-grekas

HttplugClient.php

@@ -13,6 +13,7 @@
 
 use GuzzleHttp\Promise\Promise as GuzzlePromise;
 use GuzzleHttp\Promise\RejectedPromise;
+use GuzzleHttp\Promise\Utils;
 use Http\Client\Exception\NetworkException;
 use Http\Client\Exception\RequestException;
 use Http\Client\HttpAsyncClient;
@@ -73,7 +74,7 @@ public function __construct(HttpClientInterface $client = null, ResponseFactoryI
     {
         $this->client = $client ?? HttpClient::create();
         $streamFactory ??= $responseFactory instanceof StreamFactoryInterface ? $responseFactory : null;
-        $this->promisePool = \function_exists('GuzzleHttp\Promise\queue') ? new \SplObjectStorage() : null;
+        $this->promisePool = class_exists(Utils::class) ? new \SplObjectStorage() : null;
 
         if (null === $responseFactory || null === $streamFactory) {
             if (!class_exists(Psr17Factory::class) && !class_exists(Psr17FactoryDiscovery::class)) {

Internal/HttplugWaitLoop.php

@@ -52,7 +52,7 @@ public function wait(?ResponseInterface $pendingResponse, float $maxDuration = n
             return 0;
         }
 
-        $guzzleQueue = \GuzzleHttp\Promise\queue();
+        $guzzleQueue = \GuzzleHttp\Promise\Utils::queue();
 
         if (0.0 === $remainingDuration = $maxDuration) {
             $idleTimeout = 0.0;