chore(deps): update github artifact actions

Author: renovate[bot]

.github/workflows/python-publish.yml

@@ -34,7 +34,7 @@ jobs:
           poetry build
 
       - name: Upload distributions
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: release-dists
           path: dist/
@@ -60,7 +60,7 @@ jobs:
 
     steps:
       - name: Retrieve release distributions
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: release-dists
           path: dist/