Fix tests

[makasim]

Summary:

• go version updated in CI
• go version updated in go.mod
• golang.org/x/sys package version updated
• Run go mod tidy && go mod vendor

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.23%. Comparing base (14f3880) to head (a5d1f87).
Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #85      +/-   ##
==========================================
+ Coverage   75.88%   76.23%   +0.35%     
==========================================
  Files           4        4              
  Lines         539      547       +8     
==========================================
+ Hits          409      417       +8     
  Misses         73       73              
  Partials       57       57              

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