Bump tsup from 8.1.0 to 8.1.1 in /packages/web-features

Bumps [tsup](https://github.com/egoist/tsup) from 8.1.0 to 8.1.1.
- [Release notes](https://github.com/egoist/tsup/releases)
- [Changelog](https://github.com/egoist/tsup/blob/dev/.releaserc.json)
- [Commits](egoist/tsup@v8.1.0...v8.1.1)

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

Signed-off-by: dependabot[bot] <[email protected]>