fix(hepa): fix key-auth for mse and nginx check for kong

[wangzhuzhen]

What this PR does / why we need it:

Fix 3 bugs：
(1) Lack of credential for default config for mse key-auth plugin.
(2) MSE gateway redirect type url support modify
(3) Nginx custom config conflict check

Specified Reviewers:

/assign @dspo @luobily

ChangeLog

Bugfix： Fix the bug that some configurations for MSE or Nginx-Kong Gateway（修复了 MSE key-auth 和 Kong 自定义 Nginx 配置校验的问题）

Language	Changelog
🇺🇸 English	Fix the bug that some configurations for MSE or Nginx-Kong Gateway
🇨🇳 中文	修复了 MSE 和 Kong 自定义 Nginx 配置校验的问题

Need cherry-pick to release versions?

/cherry-pick release/2.4-beta.1

[erda-bot]

Automated cherry pick can ONLY be triggered when this PR is MERGED!

[codecov]

Codecov Report

Merging #5976 (e1895f1) into master (3dc8924) will increase coverage by 0.01%.
The diff coverage is 28.88%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5976      +/-   ##
==========================================
+ Coverage   22.18%   22.19%   +0.01%     
==========================================
  Files        1880     1880              
  Lines      208425   208472      +47     
==========================================
+ Hits        46231    46272      +41     
- Misses     156903   156905       +2     
- Partials     5291     5295       +4     

Impacted Files	Coverage Δ
...rator/hepa/gateway-providers/mse/plugins/common.go	33.23% <ø> (ø)
...chestrator/hepa/services/endpoint_api/impl/impl.go	2.63% <27.50%> (+0.37%)	⬆️
...orchestrator/hepa/services/api_policy/impl/impl.go	8.90% <40.00%> (-0.06%)	⬇️

... and 10 files with indirect coverage changes

[luobily]

/approve

[luobily]

/cherry-pick release/2.4-beta.2