update go mod

[wenzuochao]

No description provided.

[codecov-commenter]

Codecov Report

Merging #112 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #112   +/-   ##
=======================================
  Coverage   93.21%   93.21%           
=======================================
  Files           4        4           
  Lines         457      457           
=======================================
  Hits          426      426           
  Misses         20       20           
  Partials       11       11           

Flag	Coverage Δ
#go	91.05% <ø> (ø)
#php	100.00% <ø> (ø)
#python	95.73% <ø> (ø)

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