Bump tsup from 8.0.2 to 8.1.0 in /packages/web-features (#1167)

Bumps [tsup](https://github.com/egoist/tsup) from 8.0.2 to 8.1.0.
- [Release notes](https://github.com/egoist/tsup/releases)
- [Changelog](https://github.com/egoist/tsup/blob/dev/.releaserc.json)
- [Commits](egoist/tsup@v8.0.2...v8.1.0)

---
updated-dependencies:
- dependency-name: tsup
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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