Multi-arch: Use official pack RC

[sophiewigmore]

Summary

Use the pack RC with multi-arch support instead of the temporary compiled binary. When an official release comes out, we will remove scripts/.util/tools.json from the scripts/.syncignore

Use Cases

Checklist

• [X] I have viewed, signed, and submitted the Contributor License Agreement.
• [ ] I have linked issue(s) that this PR should close using keywords or the Github UI (See docs)
• [ ] I have added an integration test, if necessary.
• [X] I have reviewed the styleguide for guidance on my code quality.
• [X] I'm happy with the commit history on this PR (I have rebased/squashed as needed).

[jjbustamante]

@sophiewigmore not sure if it is relevant for the PR but I just published a release candidate 2 fixing the binaries for macos intel machines