* feat(github-actions): Support non-semver refs (tags and branches)
* refactor(github-actions): drop ref= prefix, use bare token comments
Address review feedback: use bare `# cargo-llvm-cov` instead of
`# ref=cargo-llvm-cov` for non-semver pin comments, consistent with
how version comments work (`# v4.0.0`).
- Rename pinnedVersionRe -> pinTokenRe, add bareTokenRe fallback
- Add `ref` field to CommentData, separate from pinnedVersion
- Guard replaceString extension to only use ref for SHA-pinned actions
- Remove redundant autoReplaceStringTemplate override
- Deduplicate versionLikeRe (export from parse.ts)
- Add datasource assertions to non-semver tests
* refactor(github-actions): remove unreachable parseComment branch
* test(github-actions): add coverage for non-version ref fallback
Sergei Zharinov