bug: nacos discovery config valid error when using $ in password symbol in config.yaml

[Fengxq2014]

Issue description

When using $ in nacos password in config.yaml following the document from https://apisix.apache.org/docs/apisix/discovery/nacos.
At starting time the nacos report error

Environment

• apisix version (cmd: apisix version): 2.12.1
• OS (cmd: uname -a): linux

Steps to reproduce

1. Config following yaml fragment in config.yaml

discovery:
  nacos:
    host:
      - "http://nacos:NOK1&(&*!#[email protected]:8848"

2. Start apisix

Actual result

apisix start report error

Error log

[lua] init.lua:124: get_token_param(): nacos login fail:nacos NOK1&(&*!#3$%24 desc:status = 403, context: ngx.timer
[lua] init.lua:249: get_token_param error:status = 403, context: ngx.timer

Expected result

No response

[spacewander]

Fixed in #6261? Will be in the 2.13.0 release.

[leslie-tsang]

Please assign it to me. :)

[leslie-tsang]

Fixed in #6261? Will be in the 2.13.0 release.

The schema check rules do not match character $, I will fix it.

[leslie-tsang]

@Fengxq2014 Could you please check the PR #6567 , if the test case can cover your scenario.

[Fengxq2014]

@lhack-jpeg Yes, thanks for your work