... by moving "license/cla" from `status` to `pr_status` in `bors.toml`.
Melded together stuff from https://github.com/sigp/lighthouse/pull/1326 and https://github.com/sigp/lighthouse/pull/1337. Note that I've reduced the timeout to 2 hours to save some time in case the build gets stuck. Co-authored-by: Michael Sproul <michael@sigmaprime.io>