update setup_systools shell script

Guo Wenxue

2022-04-09 cccd7a63a3e627e579fd26f289391f1c3a9f0c11

 modules/python/sht20.py

old mode 100644
new mode 100755
@@ -1,4 +1,6 @@
#!/usr/bin/python
#-*- coding: utf-8 -*-

import fcntl
import time
import unittest