fix(validate): 更新小红书转化类型校验规则

addons/shopro/validate/user/XhsAd.php

@@ -11,7 +11,7 @@ class XhsAd extends Validate
         'request_id'      => 'length:0,128',
         'event_type'      => 'length:0,32',
         'landing_page'    => 'length:0,512',
-        'conversion_type' => 'require|in:register,order,payment,add_wechat',
+        'conversion_type' => 'require|in:register,order,visit',
         'value'           => 'float',
         'order_id'        => 'length:0,64',
     ];