Bump dessant/lock-threads from 4 to 5

Bumps [dessant/lock-threads](https://github.com/dessant/lock-threads) from 4 to 5.
- [Release notes](https://github.com/dessant/lock-threads/releases)
- [Changelog](https://github.com/dessant/lock-threads/blob/main/CHANGELOG.md)
- [Commits](dessant/lock-threads@v4...v5)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/lock-issues.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Lock Issues'
-        uses: dessant/lock-threads@v4
+        uses: dessant/lock-threads@v5
         with:
           github-token: ${{ github.token }}
           issue-inactive-days: '30'