build(deps): bump actions/upload-artifact from 6 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 6 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v6...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/dockerpublish.yml

@@ -15,7 +15,7 @@ jobs:
         run: 'docker version && docker compose version'
       - name: 'Run tests'
         run: './test.sh'
-      - uses: 'actions/upload-artifact@v6'
+      - uses: 'actions/upload-artifact@v7'
         if: 'failure()'
         with:
           name: 'test-artifacts'