Update actions/upload-pages-artifact action to v4

Author: renovate[bot]

.github/workflows/vortex-release-docs.yml

@@ -133,7 +133,7 @@ jobs:
         working-directory: .vortex/docs
 
       - name: Upload documentation site
-        uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa # v3
+        uses: actions/upload-pages-artifact@7b1f4a764d45c48632c6b24a0339c27f5614fb0b # v4
         with:
           path: .vortex/docs/build