Update src/fastapi_oauth2/middleware.py

Co-authored-by: Artyom Vancyan <44609997+ArtyomVancyan@users.noreply.github.com>

Author: Scurrra

src/fastapi_oauth2/middleware.py

@@ -53,7 +53,7 @@ def jwt_decode(cls, token: str) -> dict:
 
     @classmethod
     def jwt_create(cls, token_data: dict) -> str:
-        expire = datetime.now(UTC) + timedelta(seconds=cls.expires)
+        expire = datetime.now(timezone.utc) + timedelta(seconds=cls.expires)
         return cls.jwt_encode({**token_data, "exp": expire})