Bump Golang version

[vania-pooh]

No description provided.

[codecov-io]

Codecov Report

Merging #112 into master will decrease coverage by 0.42%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #112      +/-   ##
==========================================
- Coverage   90.69%   90.27%   -0.43%     
==========================================
  Files           3        3              
  Lines         473      473              
==========================================
- Hits          429      427       -2     
- Misses         39       41       +2     
  Partials        5        5

Impacted Files	Coverage Δ
proxy.go	96.65% <0%> (-0.61%)	⬇️

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