fix: leader election e2e test (#2655)

Signed-off-by: Attila Mészáros <a_meszaros@apple.com>

Author: csviri

sample-operators/leader-election/src/test/java/io/javaoperatorsdk/operator/sample/LeaderElectionE2E.java

@@ -138,13 +138,15 @@ private void deployOperatorsInOrder(String yamlFilePrefix) {
     applyResources("k8s/" + yamlFilePrefix + "operator.yaml");
     await().atMost(Duration.ofSeconds(POD_STARTUP_TIMEOUT)).untilAsserted(() -> {
       var pod = client.pods().inNamespace(namespace).withName(OPERATOR_1_POD_NAME).get();
+      assertThat(pod.getStatus().getContainerStatuses()).isNotEmpty();
       assertThat(pod.getStatus().getContainerStatuses().get(0).getReady()).isTrue();
     });
 
     log.info("Installing 2nd instance");
     applyResources("k8s/" + yamlFilePrefix + "operator-instance-2.yaml");
     await().atMost(Duration.ofSeconds(POD_STARTUP_TIMEOUT)).untilAsserted(() -> {
       var pod = client.pods().inNamespace(namespace).withName(OPERATOR_2_POD_NAME).get();
+      assertThat(pod.getStatus().getContainerStatuses()).isNotEmpty();
       assertThat(pod.getStatus().getContainerStatuses().get(0).getReady()).isTrue();
     });
   }