[HttpClient] Explicitly exclude CURLOPT_POSTREDIR

Author: nicolas-grekas

CurlHttpClient.php

@@ -469,6 +469,7 @@ private function validateExtraCurlOptions(array $options): void
             \CURLOPT_TIMEOUT_MS => 'max_duration',
             \CURLOPT_TIMEOUT => 'max_duration',
             \CURLOPT_MAXREDIRS => 'max_redirects',
+            \CURLOPT_POSTREDIR => 'max_redirects',
             \CURLOPT_PROXY => 'proxy',
             \CURLOPT_NOPROXY => 'no_proxy',
             \CURLOPT_SSL_VERIFYPEER => 'verify_peer',