build(deps): update dependency com.google.cloud:google-cloud-shared-config to v1.8.1

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.google.cloud:google-cloud-shared-config	1.8.0 -> 1.8.1

---

Release Notes

googleapis/java-shared-config (com.google.cloud:google-cloud-shared-config)

### [`v1.8.1`](https://togithub.com/googleapis/java-shared-config/blob/HEAD/CHANGELOG.md#181-2024-06-24) [Compare Source](https://togithub.com/googleapis/java-shared-config/compare/v1.8.0...v1.8.1) ##### Dependencies - Update actions/checkout digest to [`692973e`](https://togithub.com/googleapis/java-shared-config/commit/692973e) ([#​814](https://togithub.com/googleapis/java-shared-config/issues/814)) ([ebece6b](https://togithub.com/googleapis/java-shared-config/commit/ebece6b7df6208527450c12368fcc0c6ce07ac67))

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.

[dpebot]

/gcbrun

[michaelpri10]

/gcbrun