chore(deps): bump dessant/lock-threads from 3 to 4

Bumps [dessant/lock-threads](https://github.com/dessant/lock-threads) from 3 to 4.
- [Release notes](https://github.com/dessant/lock-threads/releases)
- [Changelog](https://github.com/dessant/lock-threads/blob/master/CHANGELOG.md)
- [Commits](https://github.com/dessant/lock-threads/compare/v3...v4)

---
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.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Lock closed issues and PRs
-        uses: dessant/lock-threads@v3
+        uses: dessant/lock-threads@v4
         with:
           github-token: ${{ github.token }}
           issue-inactive-days: "14"