style: sort imports in api tests

tests/api/routes/controller/test_roles.py

@@ -16,11 +16,10 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import pytest
-
 from fastapi import FastAPI, status
 from httpx import AsyncClient
-
 from sqlalchemy.ext.asyncio import AsyncSession
+
 from gns3server.db.repositories.rbac import RbacRepository
 
 pytestmark = pytest.mark.asyncio