How to mention CA Certificates MountPath in CRW?

Issue

• RHCRW Workspace tools/plugin install/update failed:

Tools environment: GOPATH=/projects/.che/gopath:/projects
Installing 2 tools at /projects/.che/gopath/bin:/projects/bin in module mode.
  gocode-gomod
  golangci-lint

Installing github.com/stamblerre/gocode FAILED
Installing github.com/golangci/golangci-lint/cmd/golangci-lint FAILED
2 tools failed to install.

gocode-gomod: failed to install [object Object]: Error: Command failed: /usr/bin/go get -v -d github.com/stamblerre/gocode
go get: module github.com/stamblerre/gocode: Get "https://proxy.golang.org/github.com/stamblerre/gocode/@v/list": x509: certificate signed by unknown authority