Make it easier to pipe release-pulls to other tools (#13905)
Make it easier to pipe release-pulls to other tools (#13905)

For example, I can now do something like

```
gh pr list --search $(node ./scripts/release-pulls.js -q --query-only)
```

to search the PRs in a pending release.
chrisdavidmills/browser-compat-data,mdn/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data