src/timeout: update logic to get username of current user

Since the user schema has been changed in the API,
update the logic to get `username` in `timeout` service.

Signed-off-by: Jeny Sadadia <[email protected]>

src/timeout.py

@@ -28,7 +28,7 @@ def __init__(self, configs, args, name):
             if state != state.DONE
         ]
         self._user = self._api.whoami()
-        self._username = self._user['profile']['username']
+        self._username = self._user['username']
 
     def _setup(self, args):
         return {