Bump hexo from 7.2.0 to 8.0.0

Bumps [hexo](https://github.com/hexojs/hexo) from 7.2.0 to 8.0.0.
- [Release notes](https://github.com/hexojs/hexo/releases)
- [Commits](hexojs/hexo@v7.2.0...v8.0.0)

---
updated-dependencies:
- dependency-name: hexo
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Author: dependabot[bot]