build(deps): bump dessant/lock-threads from 2.1.2 to 3 (#3782)

* Create dependabot.yml

* build(deps): bump dessant/lock-threads from 2.1.2 to 3

Bumps [dessant/lock-threads](https://github.com/dessant/lock-threads) from 2.1.2 to 3.
- [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/v2.1.2...v3)

---
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>

Co-authored-by: Daniel Gibbs <me@danielgibbs.co.uk>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/lock.yml

@@ -8,7 +8,7 @@ jobs:
   lock:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/lock-threads@v2.1.2
+      - uses: dessant/lock-threads@v3
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           issue-lock-comment: >