test(e2e): Fix CRS helper with multiple bindings

Check the relevant ResourceSetBinding to see if the resource is applied. If multiple ClusterResourceSets match a cluster, the
ClusterResourceSetBinding will have multiple bindings and so only the
relevant ResourceSetBinding should be checked.

Author: jimmidyson

test/framework/clusterresourceset_helpers.go

@@ -150,10 +150,24 @@ func WaitForClusterResourceSetToApplyResources(ctx context.Context, input WaitFo
 				continue
 			}
 
-			if len(binding.Spec.Bindings) == 0 || !binding.Spec.Bindings[0].IsApplied(resource) {
+			// Check relevant ResourceSetBinding to see if the resource is applied. If no ResourceSetBinding is found for
+			// the specified ClusterResourceSet, the resource has not applied.
+			resourceSetBinding, found := getResourceSetBindingForClusterResourceSet(binding, input.ClusterResourceSet)
+			if !found || !resourceSetBinding.IsApplied(resource) {
 				return false
 			}
 		}
 		return true
 	}, intervals...).Should(BeTrue())
 }
+
+func getResourceSetBindingForClusterResourceSet(
+	clusterResourceSetBinding *addonsv1.ClusterResourceSetBinding, clusterResourceSet *addonsv1.ClusterResourceSet,
+) (*addonsv1.ResourceSetBinding, bool) {
+	for _, binding := range clusterResourceSetBinding.Spec.Bindings {
+		if binding.ClusterResourceSetName == clusterResourceSet.Name {
+			return binding, true
+		}
+	}
+	return nil, false
+}