关于上传zip时候，type判断的bug

[inmapx]

Issue Description

代码如下：
if (configInfo.getDataId().contains(SPOT)) {
String extName = configInfo.getDataId().substring(configInfo.getDataId().lastIndexOf(SPOT) + 1).toLowerCase();
try {
type = FileTypeEnum.valueOf(extName).getFileType();
} catch (Exception ex) {
type = FileTypeEnum.TEXT.getFileType();
}
}

Describe what happened (or what feature you want)

Describe what you expected to happen

至少应该toUpperCase一下吧，要不然type全部text类型了

type = FileTypeEnum.valueOf(extName.toUpperCase()).getFileType();

How to reproduce it (as minimally and precisely as possible)

上传zip配置包

Tell us your environment

Anything else we need to know?

小bug希望大佬们修复一下

[nkorange]

欢迎你贡献修复！

[inmapx]

欢迎你贡献修复！

嗯嗯，好的，第一次加入开源项目，很荣幸，我先学习下怎么做。