feat: sentinel plugin

[WeixinX]

Related to #725

Sentinel plugin and its unit tests, integration tests

The relevant documents will be coming soon

[codecov]

Codecov Report

Attention: Patch coverage is 79.64602% with 69 lines in your changes missing coverage. Please review.

Project coverage is 87.37%. Comparing base (715dd41) to head (59e9a4c).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
types/plugins/sentinel/config.go	74.69%	14 Missing and 7 partials ⚠️
plugins/plugins/sentinel/config.go	71.69%	10 Missing and 5 partials ⚠️
plugins/plugins/sentinel/filter.go	89.88%	6 Missing and 3 partials ⚠️
plugins/plugins/sentinel/rules/circuitbreaker.go	81.39%	5 Missing and 3 partials ⚠️
plugins/plugins/sentinel/rules/flow.go	75.75%	5 Missing and 3 partials ⚠️
plugins/plugins/sentinel/rules/hotspot.go	78.94%	5 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #740      +/-   ##
==========================================
- Coverage   87.70%   87.37%   -0.34%     
==========================================
  Files         136      142       +6     
  Lines        8157     8512     +355     
==========================================
+ Hits         7154     7437     +283     
- Misses        782      829      +47     
- Partials      221      246      +25     

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[spacewander]

Let's merge main to make CI pass.

[github-actions]

👋 Hi, I detected conflicts against the base branch 🙊
You'll want to sync 🔄 your branch with upstream!

[WeixinX]

When I was running CI earlier, I found an error that seemed to have nothing to do with the code I committed, but rather with nacos. See controller-test - Test.

[spacewander]

When I was running CI earlier, I found an error that seemed to have nothing to do with the code I committed, but rather with nacos. See controller-test - Test.

The integration test of controller is not stable, it may fail once in a dozen times. Feel free to ignore it if you think it's not caused by your code. We will rerun it if needed.

[spacewander]

Let's merge main to apply latest change

[github-actions]

👋 Hi, I detected conflicts against the base branch 🙊
You'll want to sync 🔄 your branch with upstream!

[alpha-baby]

LGTM

[github-actions]

👋 Hi, I detected conflicts against the base branch 🙊
You'll want to sync 🔄 your branch with upstream!

[github-actions]

👋 Hi, I detected conflicts against the base branch 🙊
You'll want to sync 🔄 your branch with upstream!

[spacewander]

@WeixinX
Merged. Thanks!