Those are the Client ID and Client Secret of your Google Social connection. By default Auth0 will populate those with auth0 developer keys so you are ready to test the connection. However you should register your own google app as described here https://auth0.com/docs/connections/social/google#1-set-up-your-app-in-google Once you do that you will have your own set of Client ID and Secret that is specific to your own google app instead of Auth0.
Hope that helps.