Bump @antfu/eslint-config from 4.12.0 to 6.1.0

Bumps [@antfu/eslint-config](https://github.com/antfu/eslint-config) from 4.12.0 to 6.1.0.
- [Release notes](https://github.com/antfu/eslint-config/releases)
- [Commits](antfu/eslint-config@v4.12.0...v6.1.0)

---
updated-dependencies:
- dependency-name: "@antfu/eslint-config"
  dependency-version: 6.1.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]