{Build} Add artifact downloads for wheel files.

Summary: This diff allows users to download built wheel files from github actions.

Reviewed By: danielyan86129

Differential Revision: D95294060

fbshipit-source-id: e9b41ecfa097a73a85156aafb9b9336e0c545d23

Author: YLouWashU

.github/workflows/build-and-test.yml

@@ -74,3 +74,9 @@ jobs:
         run: |
           pip install -e .
           python -m pytest test
+
+      - name: Upload wheel artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: wheels-${{ matrix.os }}
+          path: dist/*.whl