build(deps): bump dawidd6/action-download-artifact from 5 to 6

Bumps [dawidd6/action-download-artifact](https://github.com/dawidd6/action-download-artifact) from 5 to 6.
- [Release notes](https://github.com/dawidd6/action-download-artifact/releases)
- [Commits](dawidd6/action-download-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: dawidd6/action-download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/appimage.yml

@@ -37,7 +37,7 @@ jobs:
     if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' && github.repository == 'linux-nvme/nvme-cli' }}
     steps:
       - name: Download artifact
-        uses: dawidd6/action-download-artifact@v5
+        uses: dawidd6/action-download-artifact@v6
         with:
           workflow: ${{ github.event.workflow_run.workflow_id }}
           workflow_conclusion: success