ci: add workflows of integrate with crowdin

[uiolee]

Check List

Please read and check followings before submitting a PR.

2119

add ci for integrating with crowdin

• [x] Others (Update, fix, translation, etc...)
  • Languages:
  • [ ] en English
  • [ ] ru Russian
  • [ ] zh-cn simplified Chinese
  • [ ] zh-tw traditional Chinese

[github-actions[bot]]

Theme thumbnails validation completed.

[yoshinorin]

@uiolee Should we merge https://github.com/hexojs/site/pull/2150 before merge this PR? (or can we migrate only Japanese docs to Crowdin later additionaly?)

[uiolee]

I think 2150 can be merged anytime. Migrating to crowdin is not difficult.

[D-Sketon]

Can we merge this?