Fix the exp when creating a JWT

Author: ArtyomVancyan

src/fastapi_oauth2/middleware.py

@@ -63,7 +63,7 @@ def jwt_decode(cls, token: str) -> dict:
 
     @classmethod
     def jwt_create(cls, token_data: dict) -> str:
-        expire = datetime.utcnow() + timedelta(minutes=cls.expires)
+        expire = datetime.utcnow() + timedelta(seconds=cls.expires)
         return cls.jwt_encode({**token_data, "exp": expire})