The coderabbit CLI is installed and used to review the diffs.
The review is added as a phabricator comment on the revision.
There is no way to test the full workflow without deploying the build bot, so the runOnDiff flag is commented out for now.
We can then deploy after this diff landed and summon the review manually for testing.
Once this tested is successful, we can enable the runOnDiff flag and remove the cat to teamcity stdout.