parameters: add parameters.json.gz as output

src/lib/parameters/CMakeLists.txt

@@ -89,7 +89,7 @@ add_custom_command(OUTPUT ${generated_serial_params_file}
 set(parameters_xml ${PX4_BINARY_DIR}/parameters.xml)
 set(parameters_json ${PX4_BINARY_DIR}/parameters.json)
 file(GLOB_RECURSE param_src_files ${PX4_SOURCE_DIR}/src/*params.c)
-add_custom_command(OUTPUT ${parameters_xml} ${parameters_json}
+add_custom_command(OUTPUT ${parameters_xml} ${parameters_json} ${parameters_json}.gz
 	COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/px_process_params.py
 		--src-path ${module_list} ${generated_params_dir}
 		--xml ${parameters_xml}