Bump actions/checkout from 3.5.2 to 3.5.3 (#766)

Bumps [actions/checkout](https://github.com/actions/checkout) from 3.5.2 to 3.5.3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v3.5.2...v3.5.3)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/md-link-checker.yml

@@ -8,6 +8,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     # checkout to latest commit
-    - uses: actions/checkout@v3.5.2
+    - uses: actions/checkout@v3.5.3
     # run markdown linter
     - uses: gaurav-nelson/github-action-markdown-link-check@1.0.15