build(deps): bump rollup in /webview-ui/test-generation (#121)

Bumps [rollup](https://github.com/rollup/rollup) from 4.21.3 to 4.24.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v4.21.3...v4.24.0)

---
updated-dependencies:
- dependency-name: rollup
  dependency-type: indirect
...

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