Update go.mod to 1.19

[edaniels]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.43%. Comparing base (1f0cca2) to head (75d8c51).

❗ Current head 75d8c51 differs from pull request most recent head b270b7d. Consider uploading reports for the commit b270b7d to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #108   +/-   ##
=======================================
  Coverage   53.43%   53.43%           
=======================================
  Files           2        2           
  Lines         131      131           
=======================================
  Hits           70       70           
  Misses         59       59           
  Partials        2        2           

Flag	Coverage Δ
go	53.43% <ø> (ø)
wasm	53.43% <ø> (ø)

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[edaniels]

Looks fine