Build(deps): Bump actions/download-artifact from 4.1.5 to 4.1.6

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4.1.5 to 4.1.6.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4.1.5...v4.1.6)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/tests.yml

@@ -291,7 +291,7 @@ jobs:
           run: mkdir artifacts code unit-coverage integration-coverage
         - name: Download artifacts
           if: ${{ github.event_name == 'push' }}
-          uses: actions/download-artifact@v4.1.5
+          uses: actions/download-artifact@v4.1.6
           with:
             path: artifacts
         - name: Checkout of code base