fixup: fix NPE

Signed-off-by: sutan <sutan@redhat.com>

jkube-kit/build/service/docker/src/main/java/org/eclipse/jkube/kit/build/service/docker/helper/ConfigHelper.java

@@ -209,7 +209,7 @@ public static List<ImageConfiguration> initImageConfiguration(String apiVersion,
 
         for (ImageConfiguration image : resolvedImages) {
             BuildConfiguration buildConfiguration = image.getBuildConfiguration();
-            if (buildConfiguration.isDockerFileMode()) {
+            if (buildConfiguration != null &&  buildConfiguration.isDockerFileMode()) {
                 log.info("Using Dockerfile: %s", buildConfiguration.getDockerFile().getAbsolutePath());
             }
         }