#3172 Fix: 枚举类 ValueField 的类型为 Integer 时，无法反序列化 String 类型的值

[cnscoo]

What this PR does / why we need it?

当枚举类 ValueField 的类型为非 String 类型时，无法通过 String 类型的值反序列化，在一些参数接收枚举类型时不方便

Summary of your change

当枚举类 ValueField 的类型为非 String 类型时，在 ObjectReaderImplEnum 类中也会缓存一份 String 化的值，在反序列化时，如果其他类型匹配失败，可以使用 String 类型的值进行匹配，从而获取正确的枚举元素。

Please indicate you've done the following:

• Made sure tests are passing and test coverage is added if needed.
• Made sure commit message follow the rule of Conventional Commits specification.
• Considered the docs impact and opened a new docs issue or PR with docs changes if needed.