feat: support sending msg to dingding based on pr author

[LinuxSuRen]

No description provided.

[codecov]

Codecov Report

Merging #45 (762392e) into master (aed063d) will increase coverage by 0.92%.
The diff coverage is 45.33%.

@@            Coverage Diff             @@
##           master      #45      +/-   ##
==========================================
+ Coverage   34.36%   35.29%   +0.92%     
==========================================
  Files           6        7       +1     
  Lines         323      391      +68     
==========================================
+ Hits          111      138      +27     
- Misses        211      251      +40     
- Partials        1        2       +1     

Flag	Coverage Δ
unittests	35.29% <45.33%> (+0.92%)	⬆️

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Files Changed	Coverage Δ
cmd/pull_request.go	38.70% <38.70%> (ø)
cmd/status.go	58.02% <70.00%> (-1.19%)	⬇️
cmd/comment.go	50.00% <100.00%> (ø)
cmd/root.go	100.00% <100.00%> (ø)