Move JS SDK release and docs deployment to CI

[louischan-oursky]

We used to have a local script to automate the release routine and the docs deployment. But now we are restricted from direct pushing to master branch. We need to change the workflow to accommodate the new restrictions.

• Release
• Doc
  • Each release has its own doc, so readers can look back at older docs

[linear]

DEV-1191 Move release and docs deployment to CI