update go version

[sunny0826]

as title

[codecov]

Codecov Report

Merging #55 (29ea121) into master (1232a58) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #55   +/-   ##
=======================================
  Coverage   11.06%   11.06%           
=======================================
  Files          17       17           
  Lines        1148     1148           
=======================================
  Hits          127      127           
  Misses       1007     1007           
  Partials       14       14           

Flag	Coverage Δ
unittests	11.06% <ø> (ø)

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