skip OCS parsing when status no content

Signed-off-by: Alexander Piskun <bigcat88@icloud.com>

Author: bigcat88

nc_py_api/_session.py

@@ -198,6 +198,8 @@ def ocs(
             raise NextcloudException(408, info=info) from None
 
         check_error(response, info)
+        if response.status_code == 204:  # NO_CONTENT
+            return ""
         response_data = loads(response.text)
         ocs_meta = response_data["ocs"]["meta"]
         if ocs_meta["status"] != "ok":