Fix self.token reference.

Signed-off-by: rreis <rodrigo@zalando.de>

sevenseconds/helper/auth.py

@@ -34,7 +34,7 @@ def __init__(self,
         self.service_resources = aws_credentials_service_resources
         self.account_list_url = account_list_url
         self.token_managed_id_key = token_managed_id_key
-        self.decoded_token = jwt.decode(token, options={"verify_signature": False})
+        self.decoded_token = jwt.decode(self.token, options={"verify_signature": False})
 
         if self.token_managed_id_key not in self.decoded_token:
             raise ValueError('Invalid token. Please check your ztoken configuration')