Pull requests are not labeled by release risk #3

What

Pull requests get no change: routine or change: needs review label.
Expected: every pull request gets a release risk label, and a pull request labeled change: needs review gets a human reviewer requested.

Why

The Software Release and Deployment Procedure requires a risk level for every change, and significant changes need a human review.

Notes

Other repositories already get these labels from simpleanalytics/github-actions.