Update go to 1.11

[aledbf]

No description provided.

[codecov-io]

Codecov Report

Merging #2988 into master will not change coverage.
The diff coverage is 0%.

@@           Coverage Diff           @@
##           master    #2988   +/-   ##
=======================================
  Coverage   47.52%   47.52%           
=======================================
  Files          77       77           
  Lines        5639     5639           
=======================================
  Hits         2680     2680           
  Misses       2607     2607           
  Partials      352      352

Impacted Files	Coverage Δ
internal/ingress/errors/errors.go	63.63% <0%> (ø)	⬆️
internal/ingress/controller/nginx.go	16.04% <0%> (ø)	⬆️

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[ElvinEfendi]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aledbf, ElvinEfendi

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