Update upload-pages-artifact to use v3

Author: kailash-b

.github/workflows/release.yml

@@ -300,7 +300,7 @@ jobs:
         run: ./tools/build-docs.sh
         shell: bash
 
-      - uses: actions/upload-pages-artifact@v2
+      - uses: actions/upload-pages-artifact@v3
         with:
           path: docs