[BUG]fastjson2 2.0.53出现json转换时在使用了UseBigDecimalForDoubles后，没有将double转换成ddouble

### 问题描述
fastjson2 2.0.53出现json转换时在使用了UseBigDecimalForDoubles后，没有将double转换成ddouble

问题仅出现在json对象为list时

Start by reproducing the behavior with fastjson2 2.0.53, UseBigDecimalForDoubles, and a JSON object whose value is a list. Trace the list deserialization path and verify that every applicable double value is converted as requested; done means the issue no longer occurs for list-valued JSON objects.

Written by the indexing model from the issue text.