chore: bump turbo to 2.0.3 (#66784)
## Why?
This pull request bumps turborepo from 1.13.3-canary.2 to
[2.0.3](https://github.com/vercel/turbo/releases/tag/v2.0.3) across
multiple GitHub workflows and configuration files.
Re-attempting after we
[reverted](https://github.com/vercel/next.js/pull/66775).
