⬆️ Bump xmldom and hexo-douban

Removes [xmldom](https://github.com/xmldom/xmldom). It's no longer used after updating ancestor dependency [hexo-douban](https://github.com/mythsman/hexo-douban). These dependencies need to be updated together.


Removes `xmldom`

Updates `hexo-douban` from 1.1.3 to 2.1.0
- [Release notes](https://github.com/mythsman/hexo-douban/releases)
- [Commits](https://github.com/mythsman/hexo-douban/commits)

---
updated-dependencies:
- dependency-name: xmldom
  dependency-type: indirect
- dependency-name: hexo-douban
  dependency-type: direct:production
...

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