run triage more often

runs are typically closer to 2h or less now, sometimes as much as 2.5h

running this more often gives us lower latency to determining if flake fixes worked.

we reduced the frequency previously in budget crunch desperation, this job used to run continously (scheduled on 30m interval)

Author: BenTheElder

config/jobs/kubernetes/sig-k8s-infra/trusted/sig-k8s-infra-test-infra.yaml

@@ -94,7 +94,7 @@ periodics:
       - --jq=/usr/bin/jq
 
 - name: ci-test-infra-triage
-  interval: 4h
+  interval: 3h
   cluster: k8s-infra-prow-build-trusted
   decorate: true
   decoration_config: