chore(deps): bump actions/checkout from 2 to 4 in /.github/workflows (#487)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 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/v2...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/deploy-pages.yml

@@ -26,7 +26,7 @@ jobs:
       contents: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         # Run on releases only
         if: ${{ github.event.release }}
         with:

.github/workflows/gameci.yml

@@ -81,7 +81,7 @@ jobs:
           fi
           echo check_name=$check_name >> $GITHUB_OUTPUT
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: ${{ steps.setup.outputs.should_test == 'true' }}
         with:
           ref: ${{ github.event.pull_request.head.sha }}