ci: bump actions/download-artifact from 4.1.4 to 4.1.5

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4.1.4 to 4.1.5.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4.1.4...v4.1.5)

---
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>

Author: dependabot[bot]

.github/workflows/tests.yml

@@ -78,7 +78,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Download coverage data
-        uses: actions/download-artifact@v4.1.4
+        uses: actions/download-artifact@v4.1.5
         with:
           name: coverage-data
           path: ./