fix(titus): use labels as override only for titus health providers (#…

…3221)

Today, when determining health providers on Titus, we look at the labels on the source server group.
For AWS, we look at front50 if the app has the platform only override set.
Make Titus work similarly but allow the labels to be used as override (if they exist)

orca-clouddriver/src/main/groovy/com/netflix/spinnaker/orca/clouddriver/tasks/DetermineHealthProvidersTask.java

@@ -82,9 +82,9 @@ public TaskResult execute(Stage stage) {
       if (interestingHealthProviderNames != null) {
         // avoid a `null` value that may cause problems with ImmutableMap usage downstream
         results.put("interestingHealthProviderNames", interestingHealthProviderNames);
-      }
 
-      return TaskResult.builder(ExecutionStatus.SUCCEEDED).context(results).build();
+        return TaskResult.builder(ExecutionStatus.SUCCEEDED).context(results).build();
+      }
     }
 
     if (stage.getContext().containsKey("interestingHealthProviderNames")) {