chore(deps): update actions/download-artifact action to v5

Author: renovate[bot]

.github/workflows/ci.yml

@@ -63,7 +63,7 @@ jobs:
           fetch-depth: 2
 
       - name: "Download coverage files"
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           path: "reports"