release(turborepo): 2.9.16-canary.1 (#12960)
## Release v2.9.16-canary.1
> [!NOTE]
> Recovery PR for [the failed release
workflow](https://github.com/vercel/turborepo/actions/runs/26521917373/job/78119449443).
The npm publish already partially ran; this PR only advances repository
release state so future releases can proceed.
### Changes
Recreates the version/package metadata updates that the release workflow
would have opened after a successful publish.
