Improve unit tests and commit process

[zongUMR]

Some prior PRs:

• https://github.com/serverless/serverless-tencent/pull/71
• https://github.com/serverless/serverless-tencent/pull/72
• https://github.com/serverless/serverless-tencent/pull/74
• https://github.com/serverless/serverless-tencent/pull/75

close: https://app.asana.com/0/0/1201163033517229/f

1. 自动生成 unit coverage 报告
2. git commit 之后本地自动 prettify
3. 更多的单元测试

[github-actions[bot]]

:loop: Code coverage

Filename	Statements	Branches	Functions	Lines
src/libs/config.js	62.64%	65.28%	100%	62.64%
src/libs/utils/index.js	100%	100%	100%	100%
src/libs/utils/basic.js	32.52%	22.57%	39.02%	32.43%
src/libs/utils/utils.js	52.69%	31.76%	46.67%	52.99%
src/libs/cli.js	40.91%	29.76%	35.48%	41.18%
tests/testUtils.js	85.71%	100%	75%	85.71%