Bump actions/upload-artifact from 3 to 4 (#308)

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

.github/workflows/ci.yaml

@@ -138,7 +138,7 @@ jobs:
         run: |
           set -x
           find ./build -maxdepth 1 -mindepth 1 -type d -exec sh -c 'tar -zcf build/trento-agent-$(basename {}).tgz -C {} trento-agent -C $(pwd)/packaging/systemd trento-agent.service' \;
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: trento-binaries
           path: |