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

Author: renovate[bot]

.github/workflows/release.yaml

@@ -179,7 +179,7 @@ jobs:
         run: mv helm-index/* site
 
       - name: Upload release artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           path: site