feat(wasm): bump go to 1.21

[Codelax]

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Relates OR Closes #0000

Release note for CHANGELOG:

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.86%. Comparing base (230b1ef) to head (5166763).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3710   +/-   ##
=======================================
  Coverage   75.85%   75.86%           
=======================================
  Files         194      194           
  Lines       43193    43193           
=======================================
+ Hits        32765    32767    +2     
+ Misses       9226     9224    -2     
  Partials     1202     1202           

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