Fix hashicorp provider vault gcp auth (stale 1)

[fpopic]

closes : #17500

Reused the code that works in Cloud Functions

• https://stackoverflow.com/questions/72972205/using-hvac-login-on-gcp-cloud-function
  • https://github.com/hvac/hvac/blob/v2.0.0/hvac/api/auth_methods/gcp.py#L430

Similar example

• https://google-auth.readthedocs.io/en/latest/reference/google.auth.jwt.html#google.auth.jwt.Credentials

[fpopic]

check whether can airflow.utils.jwt_signer.JWTSigner be reused

[fpopic]

or even better https://googleapis.dev/python/google-auth/latest/reference/google.auth.jwt.html#google.auth.jwt.Credentials

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 5 days if no further activity occurs. Thank you for your contributions.

[fpopic]

reopen

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 5 days if no further activity occurs. Thank you for your contributions.

[fpopic]

reopen
please triage with hashicorp provider

[algoru]

Very need this fix. Vault gcp-auth method is not working at all.

[fpopic]

@Taragolis could you please reopen and please assign me and @messam88 (he will write here request for assignment by himself). I updated branch with latest changes in my fork fpopic/airflow but seems in origin apache/airflow I don't see the latest change in PR, guess cause the PR is closed?

[messam88]

@Taragolis Hey Taragolis could you please reopen it and assign it to me as well