optimize: remove useless code and add options

[justlorain]

What type of PR is this?

optimize: A new optimization

What this PR does / why we need it (English/Chinese):

• remove mentor map
• add options (expiration time, refresh interval)
• upgrade to go-redis v9

Which issue(s) this PR fixes:

null

[li-jin-gou]

@justlorain 同步完善一下 redis 服务注册与发现的文档