build: add scorecard-bundle make target

Author: dimakis

Makefile

@@ -467,3 +467,7 @@ imports: openshift-goimports ## Organize imports in go files using openshift-goi
 .PHONY: verify-imports
 verify-imports: openshift-goimports ## Run import verifications.
 	./hack/verify-imports.sh $(OPENSHIFT-GOIMPORTS)
+
+.PHONY: scorecard-bundle
+scorecard-bundle: ## Run scorecard tests on bundle image.
+	$(OPERATOR_SDK) scorecard bundle