use go-install-tool install crd-ref-docs

Signed-off-by: liyang <[email protected]>

Makefile

@@ -204,8 +204,9 @@ $(ENVTEST): $(LOCALBIN)
 	$(call go-install-tool,$(ENVTEST),sigs.k8s.io/controller-runtime/tools/setup-envtest,$(ENVTEST_VERSION))
 
 .PHONY: crd-ref-docs
-crd-ref-docs: ## Install crd-ref-docs.
-	GOBIN=$(LOCALBIN) go install github.com/elastic/crd-ref-docs@$(CRD_REF_DOCS_VERSION)
+crd-ref-docs: $(CRD_REF_DOCS) ## Install crd-ref-docs tool, ref: https://github.com/elastic/crd-ref-docs.
+$(CRD_REF_DOCS): $(LOCALBIN)
+	$(call go-install-tool,$(CRD_REF_DOCS),github.com/elastic/crd-ref-docs@$(CRD_REF_DOCS_VERSION))
 
 .PHONY: golangci-lint
 golangci-lint: $(GOLANGCI_LINT) ## Download golangci-lint locally if necessary.