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

Author: renovate[bot]

.github/workflows/localstack.yml

@@ -81,7 +81,7 @@ jobs:
           python-version: '3.13'
 
       - name: Download all binaries
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           path: artifacts/