Use correct type for $query parameter for get() method

Author: fnwbr

src/IntercomClient.php

@@ -151,7 +151,7 @@ public function delete($endpoint, $json)
 
     /**
      * @param string $endpoint
-     * @param string $query
+     * @param array $query
      * @return mixed
      * @throws \GuzzleHttp\Exception\GuzzleException
      */