ci: update clusterctl to use fork in tests

Author: faiq

make/clusterctl.mk

@@ -21,7 +21,7 @@ clusterctl.init:
 	      --core cluster-api:$(CAPI_VERSION) \
 	      --bootstrap kubeadm:$(CAPI_VERSION) \
 	      --control-plane kubeadm:$(CAPI_VERSION) \
-	      --infrastructure docker:$(CAPD_VERSION),aws:$(CAPA_VERSION),nutanix:$(CAPX_VERSION) \
+	      --infrastructure docker:$(CAPD_VERSION),aws:$(CAPA_VERSION)-ncn.0,nutanix:$(CAPX_VERSION) \
 	      --addon helm:$(CAAPH_VERSION) \
 	      --config clusterctl.yaml \
 	      --wait-providers