chore: bump assets from 50f99d6 to 04d6eb7

Bumps [assets](https://github.com/hexojs/hexo-starter) from `50f99d6` to `04d6eb7`.
- [Release notes](https://github.com/hexojs/hexo-starter/releases)
- [Commits](hexojs/hexo-starter@50f99d6...04d6eb7)

---
updated-dependencies:
- dependency-name: assets
  dependency-type: direct:production
...

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