Merge branch '5.2' into 5.3

* 5.2:
  [Notifier] Make sure Http TransportException is not leaking

Author: OskarStark

SmsapiTransport.php

@@ -18,6 +18,7 @@
 use Symfony\Component\Notifier\Message\SmsMessage;
 use Symfony\Component\Notifier\Transport\AbstractTransport;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
 /**
@@ -65,7 +66,13 @@ protected function doSend(MessageInterface $message): SentMessage
             ],
         ]);
 
-        if (200 !== $response->getStatusCode()) {
+        try {
+            $statusCode = $response->getStatusCode();
+        } catch (TransportExceptionInterface $e) {
+            throw new TransportException('Could not reach the remote Smsapi server.', $response, 0, $e);
+        }
+
+        if (200 !== $statusCode) {
             $error = $response->toArray(false);
 
             throw new TransportException(sprintf('Unable to send the SMS: "%s".', $error['message']), $response);