Bump @antfu/eslint-config from 3.8.0 to 3.9.1

Bumps [@antfu/eslint-config](https://github.com/antfu/eslint-config) from 3.8.0 to 3.9.1.
- [Release notes](https://github.com/antfu/eslint-config/releases)
- [Commits](antfu/eslint-config@v3.8.0...v3.9.1)

---
updated-dependencies:
- dependency-name: "@antfu/eslint-config"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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