chore: bump assets from eaf299b to a1c722e (#499)

Bumps [assets](https://github.com/hexojs/hexo-starter) from `eaf299b` to `a1c722e`.
- [Commits](hexojs/hexo-starter@eaf299b...a1c722e)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]