fixes and refactor

tests/test_auth.py

@@ -1,7 +1,7 @@
 import os
 import sys
 from pathlib import Path
-from datetime import datetime, timedelta
+from datetime import datetime, timedelta, timezone
 
 import pytest
 from jose import jwt
@@ -43,8 +43,8 @@ def test_jwt_rotation_decode(monkeypatch):
     # Sign token with old key
     payload = {
         "sub": "tester",
-        "exp": datetime.utcnow() + timedelta(minutes=5),
-        "iat": datetime.utcnow(),
+        "exp": datetime.now(timezone.utc) + timedelta(minutes=5),
+        "iat": datetime.now(timezone.utc),
         "type": "access",
     }
     token = jwt.encode(payload, old_key, algorithm=settings.algorithm)