refactor(oss): 替换BASE64解码实现

Administrator

yesterday 819fae1906786668eacbaf30faafa80eeb7145a6

 src/main/java/cc/mrbird/febs/mall/dto/memberLevel/AdminMemberLevelAddDto.java

@@ -20,4 +20,6 @@
    private String content;

    private String iconPng;

    private String headerPng;
}