chore(deps): bump hexo-util from 2.1.0 to 2.2.0 (#224)

Bumps [hexo-util](https://github.com/hexojs/hexo-util) from 2.1.0 to 2.2.0.
- [Release notes](https://github.com/hexojs/hexo-util/releases)
- [Commits](hexojs/hexo-util@2.1.0...2.2.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>