[makefile] kubebuilder-tools workaround for darwin/arm64 arch

Makefile

@@ -42,6 +42,11 @@ IMAGE_TAG ?= latest
 else
 IMAGE_TAG ?= v$(VERSION)
 endif
+# kubebuilder-tools still doesn't support darwin/arm64. This is a workaround (https://github.com/kubernetes-sigs/controller-runtime/issues/1657)
+ARCH_PARAM =
+ifeq ($(shell uname -sm),Darwin arm64)
+	ARCH_PARAM = --arch=amd64
+endif
 
 # BUNDLE_IMG defines the image:tag used for the bundle.
 # You can use it as an arg. (E.g make bundle-build BUNDLE_IMG=<some-registry>/<project-name-bundle>:<tag>)
@@ -104,7 +109,7 @@ vet: ## Run go vet against code.
 	go vet ./...
 
 test: manifests generate fmt vet envtest ## Run tests.
-	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) -p path)" go test ./... -coverprofile cover.out
+	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) $(ARCH_PARAM) use $(ENVTEST_K8S_VERSION) -p path)" go test ./... -coverprofile cover.out
 
 ##@ Build