Re-enable enzyme testing (#2480)

[only downstream]

Author: wsmoses

.buildkite/pipeline.yml

@@ -230,7 +230,8 @@ steps:
             build.message !~ /\[skip tests\]/ &&
             build.message !~ /\[skip downstream\]/
         timeout_in_minutes: 30
-        soft_fail: true
+        soft_fail:
+          - exit_status: 3
 
   - group: ":eyes: Special"
     depends_on: "cuda"