refactor: serverlessInsight provider format refactor

[Blankll]

refactor: serverlessInsight provider format refactor

refactor the provider format,to support specify the region:

provider: aliyun

to

provider
    name: alialiyun
    region: cn-hangzhou

Refs: #5

[codecov]

Codecov Report

Attention: Patch coverage is 76.47059% with 4 lines in your changes missing coverage. Please review.

Project coverage is 88.72%. Comparing base (d4cf33e) to head (d1b46f5).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
src/common/actionContext.ts	50.00%	1 Missing and 1 partial ⚠️
src/stack/deploy.ts	33.33%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #23      +/-   ##
==========================================
+ Coverage   88.67%   88.72%   +0.05%     
==========================================
  Files          40       40              
  Lines         415      417       +2     
  Branches       55       55              
==========================================
+ Hits          368      370       +2     
  Misses         31       31              
  Partials       16       16              

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