Port take workflow to use oktokit

[alamb]

          Hi, I recommend using [GitHub scripts](https://github.com/actions/github-script) instead of `curl` for easier maintainance.

We can use simple js code here instead:

octokit.rest.issues.addAssignees({
  owner,
  repo,
  issue_number,
  assignees,
});

ref: https://octokit.github.io/rest.js/v20#issues

Originally posted by @Xuanwo in #6059 (comment)