设置默认配置

bert-serving-server==1.9.2 ---> bert-serving-server==1.9.1

bert-serving-server==1.9.2 ---> bert-serving-server==1.9.1

export AUTOTEST_PLATFORM_ENV=production

AUTOTEST_PLATFORM_NLP_SERVER ---> AUTOTEST_PLATFORM_NLP_SERVER_HOST

ast ---> json.loads