Merge pull request kubernetes#74851 from dims/apparently-conformance-tests-have-run-run-serially

Apparently conformance tests have to run serially

Author: k8s-ci-robot

cluster/images/conformance/conformance-e2e.yaml

@@ -65,7 +65,7 @@ spec:
     - name: E2E_PROVIDER
       value: "local"
     - name: E2E_PARALLEL
-      value: "y"
+      value: "1"
     volumeMounts:
     - name: output-volume
       mountPath: /tmp/results