chore(deps): bump dessant/lock-threads from 5.0.1 to 6.0.0 (#20705)

Bumps [dessant/lock-threads](https://github.com/dessant/lock-threads) from 5.0.1 to 6.0.0.
- [Release notes](https://github.com/dessant/lock-threads/releases)
- [Changelog](https://github.com/dessant/lock-threads/blob/main/CHANGELOG.md)
- [Commits](1bf7ec2505...7266a7ce5c)

---
updated-dependencies:
- dependency-name: dessant/lock-threads
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/stale.yml

@@ -28,7 +28,7 @@ jobs:
     lock:
         runs-on: ubuntu-latest
         steps:
-            - uses: dessant/lock-threads@1bf7ec25051fe7c00bdd17e6a7cf3d7bfb7dc771 # v5.0.1
+            - uses: dessant/lock-threads@7266a7ce5c1df01b1c6db85bf8cd86c737dadbe7 # v6.0.0
               with:
                   github-token: ${{ github.token }}
                   process-only: 'prs'