Bump actions/upload-artifact from 3 to 4 (#25)

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

.github/workflows/ci-vm.yml

@@ -56,7 +56,7 @@ jobs:
           vagrant package --debug --no-tty --output containers-lab.box --info info.json
       - run: ls -la
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         if: github.event.inputs.uploadVmImage
         with:
           name: containers-lab-vagrant-box