Use doc workspace command.

Author: mmaker

.github/workflows/docs.yml

@@ -40,8 +40,8 @@ jobs:
       - name: Build Documentation
         uses: actions-rs/cargo@v1
         with:
-          command: rustdoc
-          args: --all-features -- -Z unstable-options --enable-index-page
+          command: doc
+          args: --all-features
       - name: Setup Pages
         uses: actions/configure-pages@v3
       - name: Upload artifact