deps: Update google-github-actions/get-secretmanager-secrets action to v2

[renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
google-github-actions/get-secretmanager-secrets	action	major	v1.0.1 -> v2.0.0

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Release Notes

google-github-actions/get-secretmanager-secrets (google-github-actions/get-secretmanager-secrets)

### [`v2.0.0`](https://togithub.com/google-github-actions/get-secretmanager-secrets/releases/tag/v2.0.0) [Compare Source](https://togithub.com/google-github-actions/get-secretmanager-secrets/compare/v1.0.1...v2.0.0) **:warning: This version requires Node 20 or later!** ##### What's Changed - dependabot: only do security updates by [@​sethvargo](https://togithub.com/sethvargo) in [https://github.com/google-github-actions/get-secretmanager-secrets/pull/266](https://togithub.com/google-github-actions/get-secretmanager-secrets/pull/266) - update all deps by [@​sethvargo](https://togithub.com/sethvargo) in [https://github.com/google-github-actions/get-secretmanager-secrets/pull/267](https://togithub.com/google-github-actions/get-secretmanager-secrets/pull/267) - Update deps to Node 20 by [@​sethvargo](https://togithub.com/sethvargo) in [https://github.com/google-github-actions/get-secretmanager-secrets/pull/273](https://togithub.com/google-github-actions/get-secretmanager-secrets/pull/273) - Drop mocha and chai by [@​sethvargo](https://togithub.com/sethvargo) in [https://github.com/google-github-actions/get-secretmanager-secrets/pull/274](https://togithub.com/google-github-actions/get-secretmanager-secrets/pull/274) - Add CI for release branches by [@​sethvargo](https://togithub.com/sethvargo) in [https://github.com/google-github-actions/get-secretmanager-secrets/pull/275](https://togithub.com/google-github-actions/get-secretmanager-secrets/pull/275) - Update deps by [@​sethvargo](https://togithub.com/sethvargo) in [https://github.com/google-github-actions/get-secretmanager-secrets/pull/276](https://togithub.com/google-github-actions/get-secretmanager-secrets/pull/276) - Release: v2.0.0 by [@​google-github-actions-bot](https://togithub.com/google-github-actions-bot) in [https://github.com/google-github-actions/get-secretmanager-secrets/pull/278](https://togithub.com/google-github-actions/get-secretmanager-secrets/pull/278) **Full Changelog**: https://github.com/google-github-actions/get-secretmanager-secrets/compare/v1...v2.0.0

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