Merge pull request #33447 from pohly/scheduler-perf-json-output

scheduler-perf: keep `go test` JSON output for debugging

Author: k8s-ci-robot

config/jobs/kubernetes/sig-scalability/sig-scalability-periodic-jobs.yaml

@@ -746,6 +746,9 @@ periodics:
       env:
       - name: KUBE_TIMEOUT
         value: --timeout=2h25m
+      # Keep the unprocessed `go test` JSON output for debugging.
+      - name: KUBE_KEEP_VERBOSE_TEST_OUTPUT
+        value: "y"
       - name: TEST_PREFIX
         value: BenchmarkPerfScheduling
       # Set the benchtime to a very low value so every test is ran at most once