Allow concurrent k8s builds

Change-Id: If39c7ba7832c9292cf152db511a5d5b30b036dae
diff --git a/jenkins/client/job/k8s-test/mcp-k8s-test-pipeline.yml b/jenkins/client/job/k8s-test/mcp-k8s-test-pipeline.yml
index 36e1dc0..0fdbbfe 100644
--- a/jenkins/client/job/k8s-test/mcp-k8s-test-pipeline.yml
+++ b/jenkins/client/job/k8s-test/mcp-k8s-test-pipeline.yml
@@ -9,7 +9,7 @@
           discard:
             build:
               keep_num: 50
-          concurrent: false
+          concurrent: true
           scm:
             type: git
             url: "${_param:jenkins_gerrit_url}/kubernetes-ci/kubernetes-pipelines"