updated CI to generate gds.gz for precheck
diff --git a/Makefile b/Makefile
index 9f59b7e..3f7eef3 100644
--- a/Makefile
+++ b/Makefile
@@ -331,4 +331,6 @@
 	gtkwave verilog/dv/io_ports/gtkwave_config.sav
 
 my_user_project_wrapper:	user_project_wrapper
+	rm -rf gds/user_project_wrapper.gds.gz
 	gzip gds/user_project_wrapper.gds
+