Bump magic-string from 0.30.12 to 0.30.17 in /packages/rtckit

Bumps [magic-string](https://github.com/rich-harris/magic-string) from 0.30.12 to 0.30.17.
- [Changelog](https://github.com/Rich-Harris/magic-string/blob/master/CHANGELOG.md)
- [Commits](Rich-Harris/magic-string@v0.30.12...v0.30.17)

---
updated-dependencies:
- dependency-name: magic-string
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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