docz log in github action is too long

[chenesan]

The docz log in github action (example) is deadly long and useless:

There has been a related issue: doczjs/docz#597 , but no maintainer responded to this. There are something we could discuss:

(1) Should we build the doc? (and have a demo site? I think the answer is 'yes' but I'm not sure if it's worth to do now)
(2) Should we build the doc inside github action (to make sure it is ready to build)?
(3) If (1) and (2) is true, maybe we can (a) send a PR to docz or (b) have our own fork of docz?(maybe a good idea since its update is slow?)

(Updated: Also open an issue on asana)