Release data-load tarball to assets when tagging a new release

CI would build and upload the following artifacts when new version released:
- Wheels
- Images
- Charts

However, groot has a tool named `data-load-tools` that is used to offline data loading, is not released by CI. That requires user to compile their own if they want to use that, which is unnecessary.

CI already built this data-load-tools. We just need to let CI to upload it to assets.