As a Jenkins user, I would like to be able to set up a Pipeline or Multibranch Pipeline job such that when a Github/(Enterprise) Pull Request is Approved, the job is triggered.

A similar capability exists in the Github Pull Request Builder Plugin, where it communicates with the Github API and is able to trigger builds based off of specific text inside a Github comment. Screen shot attached. The screen shot illustrates a job which uses the GHPRB to trigger a build if a comment "Jenkins build this" is made in the PR, or skip the build if "Jenkins skip this" is found in the comment. In my use case, I don't want to scan the comment text, I want to trigger based on the state of the PR (i.e. "Approved").