chore(deps): update actions/download-artifact action to v4.3.0

Author: renovate[bot]

.github/workflows/checks.yml

@@ -117,7 +117,7 @@ jobs:
         with:
           python-version: "3.12"
       - name: Download coverage reports
-        uses: actions/download-artifact@v4.2.1
+        uses: actions/download-artifact@v4.3.0
         with:
           merge-multiple: true