build(publish-docs): Copy manifest.json

Author: tony

.github/workflows/publish-docs.yml

@@ -64,7 +64,9 @@ jobs:
       run: poetry install
 
     - name: Build documentation
-      run: pushd docs; make SPHINXBUILD='poetry run sphinx-build' html; popd
+      run: |
+        pushd docs; make SPHINXBUILD='poetry run sphinx-build' html; popd
+        pushd docs; cp manifest.json _build/html; popd
 
     - name: Push documentation to S3
       uses: jakejarvis/s3-sync-action@master