ci(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] <[email protected]>

.github/workflows/notify-coverage.yml

@@ -18,7 +18,7 @@ jobs:
       should_notify: ${{ steps.get_coverage.outputs.should_notify }}
     steps:
       - name: Download commit sha of the most recent successful run
-        uses: dawidd6/action-download-artifact@v5
+        uses: dawidd6/action-download-artifact@v6
         with:
           # Downloads the artifact from the most recent successful run
           workflow: 'notify-coverage.yml'