https://developers.weixin.qq.com/miniprogram/dev/OpenApiDoc/qrcode-link/qr-code/getUnlimitedQRCode.html

发送的参数如下：

{
"auto_color":false,
"check_path":false,
"env_version":"",
"is_hyaline":false,
"line_color":{"b":0,"g":0,"r":0},
"page":"pages/index/index",
"scene":"code=1691400270069",
"width":430
}