Update ResponseWithAssertions.php

The situation is the following:
$request = Athena::api()->post($this->getUri());
$response = $request->then()->assertThat();

$response->retrieve();

If success this is ok, if not, I cannot reach the status code to retry the request.

Author: Yael Lorenzo

src/Response/Decorator/ResponseWithAssertions.php

@@ -160,4 +160,12 @@ public function retrieve()
         }
         return $this->response->retrieve();
     }
+    
+     /**
+     * @return Response
+     */
+    public function getResponse()
+    {
+        return $this->response;
+    }
 }