Bump the github-actions group with 1 update

Bumps the github-actions group with 1 update: [actions/upload-artifact](https://github.com/actions/upload-artifact).

- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v3...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/cff-validator.yml

@@ -27,7 +27,7 @@ jobs:
         uses: dieghernan/cff-validator@main
 
       # Upload artifact
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         if: failure()
         with:
           name: citation-cff-errors