Resolve persistent `api-unit-test` trigger failures blocking renovate-bot PRs

[pattishin]

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Problem

Need to resolve the consistent failing api-unit-test trigger failures that is currently blocking new PRs.
Failure reports saying module google is missing. Like so:

Previous PR to resolve this:

• #918

Issues that have been affected:

• https://github.com/GoogleCloudPlatform/emblem/pull/950/checks?check_run_id=15412536158
• https://github.com/GoogleCloudPlatform/emblem/pull/948/checks?check_run_id=15261048485