chore(deps): update bazel-contrib/.github action to v6 (#37)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [bazel-contrib/.github](https://togithub.com/bazel-contrib/.github) |
action | major | `v5` -> `v6` |

---

### Release Notes

<details>
<summary>bazel-contrib/.github (bazel-contrib/.github)</summary>

### [`v6`](https://togithub.com/bazel-contrib/.github/compare/v5...v6)

[Compare
Source](https://togithub.com/bazel-contrib/.github/compare/v5...v6)

</details>

---

### 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.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Renovate
Bot](https://togithub.com/renovatebot/renovate).

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Co-authored-by: renovate <renovate-thm[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ concurrency:
   cancel-in-progress: true
 jobs:
   test:
-    uses: bazel-contrib/.github/.github/workflows/bazel.yaml@v5
+    uses: bazel-contrib/.github/.github/workflows/bazel.yaml@v6
     with:
       folders: |
         [

.github/workflows/release.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   release:
-    uses: bazel-contrib/.github/.github/workflows/release_ruleset.yaml@v5
+    uses: bazel-contrib/.github/.github/workflows/release_ruleset.yaml@v6
     permissions:
       contents: write
     with: