Update required version of go to avoid errors like below

[benmathews]

error: unable to parse module file go.mod: go.mod:5: unknown directive: toolchain

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.37%. Comparing base (c8c8b40) to head (3cf1e52).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #41   +/-   ##
=======================================
  Coverage   72.37%   72.37%           
=======================================
  Files           4        4           
  Lines         181      181           
=======================================
  Hits          131      131           
  Misses         50       50           

Flag	Coverage Δ
unittests	72.37% <ø> (ø)

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