enhance: support auto pull submodule

[wwcchh0123]

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Name	Link
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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 12 lines in your changes missing coverage. Please review.

Project coverage is 36.69%. Comparing base (03b0876) to head (c7ef59c).

Files	Patch %	Lines
server.go	0.00%	12 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #268      +/-   ##
==========================================
- Coverage   37.00%   36.69%   -0.32%     
==========================================
  Files          19       19              
  Lines        1408     1420      +12     
==========================================
  Hits          521      521              
- Misses        846      858      +12     
  Partials       41       41              

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[wwcchh0123]

fix #266