Fix build again

Author: mccheah

resource-managers/kubernetes/core/src/test/scala/org/apache/spark/deploy/k8s/features/MountSecretsFeatureStepSuite.scala

@@ -35,7 +35,7 @@ class MountSecretsFeatureStepSuite extends SparkFunSuite {
     val sparkConf = new SparkConf(false)
     val kubernetesConf = KubernetesConf(
       sparkConf,
-      KubernetesExecutorSpecificConf("1", new PodBuilder().build()),
+      KubernetesExecutorSpecificConf("1", Some(new PodBuilder().build())),
       "resource-name-prefix",
       "app-id",
       Map.empty,