Bump actions/download-artifact from 3 to 4.1.7 in /.github/workflows

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3 to 4.1.7.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v3...v4.1.7)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
...

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

.github/workflows/test-coverage.yaml

@@ -68,7 +68,7 @@ jobs:
         ruby-version: "3.3"
         bundler-cache: true
 
-    - uses: actions/download-artifact@v3
+    - uses: actions/download-artifact@v4.1.7
 
     - name: Validate coverage
       timeout-minutes: 5