build(deps): bump actions/checkout from 3 to 4 (#5910)

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [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...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  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/upgrade-from-latest-release.yml

@@ -22,7 +22,7 @@ jobs:
     steps:
       -
         name: Check out latest release
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: master
       -
@@ -67,7 +67,7 @@ jobs:
       -
         name: Run the backend tests
         run: cd src && npm test
-      # Because actions/checkout@v3 is called with "ref: master" and without
+      # Because actions/checkout@v4 is called with "ref: master" and without
       # "fetch-depth: 0", the local clone does not have the ${GITHUB_SHA}
       # commit. Fetch ${GITHUB_REF} to get the ${GITHUB_SHA} commit. Note that a
       # plain "git fetch" only fetches "normal" references (refs/heads/* and