docs: add scope when loading credentials from file in google

[Kludex]

• closes GoogleModel VertexAI Service Account Credentials fail with invalid_scope #1841

[hyperlint-ai]

PR Change Summary

Enhanced the Google credentials loading process by specifying the required scopes.

• Updated the credentials loading method to include scopes for Google API access.
• Specified the cloud platform scope for enhanced security and functionality.

Modified Files

• docs/models/google.md

---

How can I customize these reviews?

Check out the Hyperlint AI Reviewer docs for more information on how to customize the review.

If you just want to ignore it on this PR, you can add the hyperlint-ignore label to the PR. Future changes won't trigger a Hyperlint review.

Note specifically for link checks, we only check the first 30 links in a file and we cache the results for several hours (for instance, if you just added a page, you might experience this). Our recommendation is to add hyperlint-ignore to the PR to ignore the link check for this PR.

[github-actions]

Docs Preview

commit:	b2015d4
Preview URL:	https://dd36164e-pydantic-ai-previews.pydantic.workers.dev