Update actions/download-artifact action to v5

Author: renovate[bot]

.github/workflows/pypi-release.yml

@@ -42,7 +42,7 @@ jobs:
 
         steps:
         - name: Download all the dists
-          uses: actions/download-artifact@v4
+          uses: actions/download-artifact@v5
           with:
             name: python-package-distributions
             path: dist/