Add make imports check to pull requests

Makefile

@@ -135,24 +135,24 @@ vet: ## Run go vet against code.
 	go vet ./...
 
 .PHONY: test
-test: manifests generate fmt vet envtest ## Run tests. We need LOCALBIN=$(LOCALBIN) to get correct default-config path
+test: manifests generate imports fmt vet envtest ## Run tests. We need LOCALBIN=$(LOCALBIN) to get correct default-config path
 	mkdir -p $(LOCALBIN)/default-config && cp config/manager/$(CONF_DIR)/* $(LOCALBIN)/default-config
 	LOCALBIN=$(LOCALBIN) KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) --bin-dir $(LOCALBIN) -p path)" go test $(PKGS) -coverprofile cover.out
 
 .PHONY: integration-test
-integration-test: ginkgo manifests generate fmt vet envtest ## Run integration_tests. We need LOCALBIN=$(LOCALBIN) to get correct default-config path
+integration-test: ginkgo manifests generate imports fmt vet envtest ## Run integration_tests. We need LOCALBIN=$(LOCALBIN) to get correct default-config path
 	mkdir -p $(LOCALBIN)/default-config && cp config/manager/$(CONF_DIR)/* $(LOCALBIN)/default-config
 	LOCALBIN=$(LOCALBIN) KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) --bin-dir $(LOCALBIN) -p path)" $(GINKGO) -v -r integration_tests
 
 
 ##@ Build
 
 .PHONY: build
-build: generate fmt vet ## Build manager binary.
+build: generate imports fmt vet ## Build manager binary.
 	go build -o bin/manager main.go
 
 .PHONY: run
-run: manifests generate fmt vet build ## Run a controller from your host.
+run: manifests generate imports fmt vet build ## Run a controller from your host.
 	cd $(LOCALBIN) && mkdir -p default-config && cp ../config/manager/$(CONF_DIR)/* default-config && ./manager
 
 # by default images expire from quay registry after 14 days