ConfigSubscriber mode not support Map

[HozonLee]

What happened?

When I use CommonGroupConfigSubscriber do config subscribe from nacos，Failed to assign the map type attribute in the configuration class、The content format in nacos has been changed

How can we reproduce it (as minimally and precisely as possible)?

definitionthe a map type attribute in the configuration class

Anything else we need to know?

No response

Sermant version

sermant version 1.3.0

OS version

# On Linux:
$ cat /etc/os-release
# paste output here
$ uname -a
# paste output here

# On Windows:
C:\> wmic os get Caption, Version, BuildNumber, OSArchitecture
# paste output here

[lilai23]

It is caused by unnecessary process for config content. We will fix it in following version