Add platform linux/amd64 for the goreleaser docker image

[LinuxSuRen]

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[codecov]

Codecov Report

Merging #140 (9a7773b) into master (fa5957d) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #140   +/-   ##
=======================================
  Coverage   15.54%   15.54%           
=======================================
  Files          24       24           
  Lines        1357     1357           
=======================================
  Hits          211      211           
  Misses       1127     1127           
  Partials       19       19           

Flag	Coverage Δ
unittests	15.54% <ø> (ø)

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