feat: allow symfony 8

BREAKING CHANGE: The native object return type was added to the doRequest() method of the Guzzle connector.
That might break code extending from this class.

Author: W0rma

composer.json

@@ -23,7 +23,7 @@
         "codeception/codeception": "*@dev",
         "codeception/lib-innerbrowser": "*@dev",
         "guzzlehttp/guzzle": "^7.4",
-        "symfony/browser-kit": "^5.4 | ^6.0 | ^7.0"
+        "symfony/browser-kit": "^5.4 | ^6.0 | ^7.0 | ^8.0"
     },
     "require-dev": {
         "ext-curl": "*",

src/Codeception/Lib/Connector/Guzzle.php

@@ -181,7 +181,7 @@ protected function getAbsoluteUri(string $uri): string
         return Uri::mergeUrls((string)$baseUri, $uri);
     }
 
-    protected function doRequest(object $request)
+    protected function doRequest(object $request): object
     {
         /** @var BrowserKitRequest $request **/
         $guzzleRequest = new Psr7Request(