feat: make it clearer when the CRD file isn't found (#1503)

* feat: make it clearer when the CRD file isn't found

* fix: only apply CRD when there is a CRD to apply

Author: metacosm

operator-framework-junit5/src/main/java/io/javaoperatorsdk/operator/junit/LocallyRunOperatorExtension.java

@@ -134,7 +134,10 @@ protected void before(ExtensionContext context) {
         ref.controllerConfigurationOverrider.accept(oconfig);
       }
 
-      applyCrd(config.getResourceTypeName());
+      // only try to apply a CRD for the reconciler if it is associated to a CR
+      if (CustomResource.class.isAssignableFrom(config.getResourceClass())) {
+        applyCrd(config.getResourceTypeName());
+      }
 
       if (ref.reconciler instanceof KubernetesClientAware) {
         ((KubernetesClientAware) ref.reconciler).setKubernetesClient(kubernetesClient);