fix: fix a broken method (#223)

Merging #153 broke main since it was using an plder version
of controller-runtime. This commit fixes the same.

Signed-off-by: Varsha Prasad Narsing <varshaprasad96@gmail.com>

pkg/reconciler/reconciler_test.go

@@ -1343,7 +1343,7 @@ var _ = Describe("Reconciler", func() {
 			controllerSetupCalled = true
 			u := &unstructured.Unstructured{}
 			u.SetGroupVersionKind(additionalGVK)
-			return c.Watch(&source.Kind{Type: u}, &sdkhandler.InstrumentedEnqueueRequestForObject{})
+			return c.Watch(source.Kind(mgr.GetCache(), u), &sdkhandler.InstrumentedEnqueueRequestForObject{})
 		}
 
 		It("Registering builder setup function for reconciler works", func() {