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

Author: renovate[bot]

.github/workflows/python-publish.yaml

@@ -112,7 +112,7 @@ jobs:
 
     steps:
       - name: Download all the dists
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: python-package-distributions
           path: dist/