[RFC] Fix language, use go:embed

[rntdrts]

Use go:embed https://pkg.go.dev/embed to not need to declare GOPATH and have language support.

This way we can have access to the languages. However, It requires that we use go version above 1.16.

[codecov]

Codecov Report

Merging #76 (8c9a2a9) into master (ce063dd) will increase coverage by 0.99%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #76      +/-   ##
==========================================
+ Coverage   89.11%   90.10%   +0.99%     
==========================================
  Files           3        3              
  Lines         634      637       +3     
==========================================
+ Hits          565      574       +9     
+ Misses         44       39       -5     
+ Partials       25       24       -1     

Impacted Files	Coverage Δ
carbon.go	91.18% <100.00%> (+0.71%)	⬆️
translator.go	65.51% <100.00%> (+6.89%)	⬆️

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