Run chaos_monkey_test on the non-gating builder

Author: edunham

etc/ci/buildbot_steps.yml

@@ -63,6 +63,11 @@ linux-rel-intermittent:
   - ./mach build --release
   - ./etc/ci/check_intermittents.sh --log-raw intermittents.log
 
+linux-rel-nogate:
+  - ./mach clean-nightlies --keep 3 --force
+  - ./mach build --release
+  - python ./etc/ci/chaos_monkey_test.py
+
 mac-rel-intermittent:
   - ./mach clean-nightlies --keep 3 --force
   - ./mach build --release