fix(providers/google): support sovereign console links

[auyua9]

What changed

Completes the Trusted Partner Cloud console-link handling for two remaining user-visible URLs:

• Stackdriver task-log viewer links
• GCS DAG bundle browser links

Both now use GoogleBaseHook.get_high_value_cookie_domain() while preserving the default google.com domain.

Tests

• uv run --package apache-airflow-providers-google pytest providers/google/tests/unit/google/cloud/bundles/test_gcs.py -q
• uv run --package apache-airflow-providers-google pytest providers/google/tests/unit/google/cloud/log/test_stackdriver_task_handler.py::TestStackdriverLoggingHandlerTask::test_should_return_valid_external_url -q
• ruff check on the four changed files

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Important

🛠️ Maintainer triage note for @auyua9 · by @potiuk · 2026-07-28 16:22 UTC

Helpful heads-up from the maintainers — please address before this PR can be reviewed:

• ❌ Pre-commit / static checks. See docs.

The ball is in your court — you've been assigned to this PR. Fix the above, then mark it Ready for review.

See the Pull Request quality criteria for how to fix each item. There is no rush.

Note: your branch is 199 commits behind main — please rebase and push again to get up-to-date CI results.

_{Automated triage — may be imperfect; a maintainer takes the next look. We use this two-stage triage process so maintainers' limited time goes to the conversation with you.}

[Srabasti]

Static checks are failing as PR title needs to be updated to resolve colon sign and conventional text.

Please run prek locally successfully, before pushing your branch to Airflow github repo @auyua9

[auyua9]

I investigated the failing CI image checks / Static checks result on this head. The failure is in the upstream providers/common/ai/provider.yaml validation (toolsets/python-modules schema / AWSToolset registration), while this PR only changes the provider path and tests. There is no safe in-scope fix without expanding the PR into unrelated provider metadata. Please re-run after the upstream provider.yaml regression is corrected, or confirm the preferred upstream fix.