GH Actions: Bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/deploy.yml

@@ -124,7 +124,7 @@ jobs:
  # Retention is normally 90 days, but this artifact is only for review
  # and use in the next step, so no need to keep it for more than a day.
  - name: Upload the artifact folder
- uses: actions/upload-artifact@v3
+ uses: actions/upload-artifact@v4
  if: ${{ success() }}
  with:
  name: deploy-artifact