upgrade download-artefact version

Author: bleykauf

.github/workflows/publish.yml

@@ -64,7 +64,7 @@ jobs:
       id-token: write  # IMPORTANT: mandatory for trusted publishing
     steps:
       - name: Download distributions
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: python-package-distributions
           path: dist/