Bump @vue/eslint-config-airbnb from 5.3.0 to 6.0.0

Bumps [@vue/eslint-config-airbnb](https://github.com/vuejs/eslint-config-airbnb) from 5.3.0 to 6.0.0.
- [Release notes](https://github.com/vuejs/eslint-config-airbnb/releases)
- [Changelog](https://github.com/vuejs/eslint-config-airbnb/blob/master/CHANGELOG.md)
- [Commits](vuejs/eslint-config-airbnb@v5.3.0...v6.0.0)

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

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

Author: dependabot[bot]