add deploy hook support for ikuai (#6456)
* add deploy hook support for ikuai
* fix shellcheck warn and shfmt the code
* 1.fix config load 2.use _secre_debug2 to log password 3.use fullchain to deploy 4.fix hardcode id 5.change shebang
* fix miss ; after cookie
* 1.fix shfmt ; 2.fix IKUAI_CERT_ID conf load; 3.correct IKUAI_CERT_ID description
* fix some log msg
* fix shfmt