Replace ioutil to io

[rerost]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 37.49%. Comparing base (32c2f18) to head (aaa6421).
Report is 1 commits behind head on master.

Files	Patch %	Lines
runner/giro/wire_gen.go	0.00%	3 Missing ⚠️
cmd/protoc-gen-reflection-server/main.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #57   +/-   ##
=======================================
  Coverage   37.49%   37.49%           
=======================================
  Files          20       20           
  Lines        1427     1427           
=======================================
  Hits          535      535           
  Misses        829      829           
  Partials       63       63           

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