Makefile: run gen-patch-defaultrestmapper.sh in codegen target

On-behalf-of: @SAP [email protected]
Signed-off-by: Robert Vasek <[email protected]>

Author: gman0

Makefile

@@ -201,6 +201,7 @@ crds: $(CONTROLLER_GEN) $(YAML_PATCH) ## Generate crds
 codegen:  $(KCP_APIGEN_GEN) crds ## Generate all
 	go mod download
 	./hack/update-codegen-clients.sh
+	./hack/gen-patch-defaultrestmapper.sh
 	$(MAKE) imports
 .PHONY: codegen