Merge branch '4.3' into 4.4

* 4.3:
  [Security/Http] fix typo in deprecation message
  Various tweaks 3.4
  Various tweaks 4.3
  [PhpUnit] Fix usleep mock return value
  [Lock] use Predis\ClientInterface instead of Predis\Client
  Fix version typo in deprecation notice
  Make legacy "wrong" RFC2047 encoding apply only to one header

Author: nicolas-grekas

Command/FailedMessagesRetryCommand.php

@@ -185,7 +185,7 @@ private function runWorker(ReceiverInterface $receiver, SymfonyStyle $io, bool $
 
         $count = 0;
         try {
-            $worker->run([], function (?Envelope $envelope) use ($worker, $io, &$count) {
+            $worker->run([], function (?Envelope $envelope) use ($worker, &$count) {
                 ++$count;
                 if (null === $envelope) {
                     $worker->stop();

Tests/WorkerTest.php

@@ -378,7 +378,7 @@ public function testWorkerWithDecorator()
         $worker = new Worker([$receiver], $bus);
         $workerWithDecorator = new StopWhenMessageCountIsExceededWorker($worker, 2);
         $processedEnvelopes = [];
-        $workerWithDecorator->run([], function (?Envelope $envelope) use ($worker, &$processedEnvelopes) {
+        $workerWithDecorator->run([], function (?Envelope $envelope) use (&$processedEnvelopes) {
             if (null !== $envelope) {
                 $processedEnvelopes[] = $envelope;
             }