Default login command not found in Scoutsuite

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Is your feature request related to a problem? Please describe.

I noticed that the gscout is providing the command for default login on user based authentication for gcp auditing. but scoutsuite is missing the same. As both are different tool, can we add this same command here also for -u?

Describe the solution you'd like

We can mention that "gcloud auth application-default login " needs to executed and logined in with the account that needs to used for auditing.