Bump actions/download-artifact from 4.1.1 to 4.1.4 (#275)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4.1.1 to 4.1.4.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4.1.1...v4.1.4)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/tests.yml

@@ -125,7 +125,7 @@ jobs:
           nox --version
 
       - name: Download coverage data
-        uses: actions/[email protected].1
+        uses: actions/[email protected].4
         with:
           pattern: coverage-data-*
           merge-multiple: true