## Summary
Fixes the broken update highway GitHub action that was failing with:
> Error: Could not fetch SHA for tag 1.2.0 @
457c891775a7397bdb0376bb1031e6e027af1c48
## Root Cause
The workflow assumed all Git tags are annotated tags, but Google Highway
uses lightweight tags. For lightweight tags, the GitHub API returns
`object.type: "commit"` and `object.sha` is already the commit SHA. For
annotated tags, `object.type: "tag"` and you need to fetch the tag
object to get the commit SHA.
## Changes
- Updated tag SHA fetching logic to handle both lightweight and
annotated tags
- Fixed incorrect branch name (`deps/update-cares` →
`deps/update-highway`)
- Fixed workflow URL in PR template
## Test Plan
- [x] Verified the API returns `type: "commit"` for highway tag 1.2.0
- [x] Confirmed the fix properly extracts the commit SHA:
`457c891775a7397bdb0376bb1031e6e027af1c48`
- [x] Manual testing shows current version (`12b325bc...`) \!= latest
version (`457c891...`)
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-authored-by: Claude Bot <claude-bot@bun.sh>
Co-authored-by: Claude <noreply@anthropic.com>
