feat(pypi): support GCloud credentials for Google Artifact Registry

[maxbrunet]

Changes

Make use of getGoogleAuthToken to populate Authorization header if registry is Google Artifact Registry (.pkg.dev)

Context

• Authenticate PyPi datasource with Google Artifact Registry using GCloud SDK credentials #30109

Documentation (please check one with an [x])

• I have updated the documentation, or
• No documentation update is required

How I've tested my work (please select one)

I have verified these changes via:

• Code inspection only, or
• Newly added/modified unit tests, or
• No unit tests but ran on a real repository, or
• Both unit tests + ran on a real repository

[secustor]

Any specific reason this is only scoped at Python packages?

I guess pkg.dev has other registries outside of Python packages too.

[maxbrunet]

Thank you for the review @viceice ❤️

Any specific reason this is only scoped at Python packages?

Time and need

I guess pkg.dev has other registries outside of Python packages too.

Yes¹, Renovate already has support in the docker and maven datasources.

Footnotes

1. https://cloud.google.com/artifact-registry/docs/supported-formats ↩

[HonkingGoose]

This PR is accidentally breaking our release step on the main branch, see Discussion:

• Broken `release` step on `main` branch, due to us confusing Semantic Release by trying to close a Discussion #31390