Fix CI Failure For make tools

[jcudit]

Tests started failing last week with this error:

�[0K$ make tools
GO111MODULE=off go get -u github.com/client9/misspell/cmd/misspell
GO111MODULE=off go get -u github.com/golangci/golangci-lint/cmd/golangci-lint
# cd .; git clone -- https://go.googlesource.com/sys /home/travis/gopath/src/golang.org/x/sys
Cloning into '/home/travis/gopath/src/golang.org/x/sys'...
fatal: remote error: 


Invalid authentication credentials.

Please generate a new identifier:
  https://go.googlesource.com/new-password


package golang.org/x/sys/unix: exit status 128
# cd .; git clone -- https://go.googlesource.com/tools /home/travis/gopath/src/golang.org/x/tools
Cloning into '/home/travis/gopath/src/golang.org/x/tools'...
fatal: remote error: 


Invalid authentication credentials.

Please generate a new identifier:
  https://go.googlesource.com/new-password


package golang.org/x/tools/go/packages: exit status 128
package golang.org/x/tools/go/ast/astutil: cannot find package "golang.org/x/tools/go/ast/astutil" in any of:
	/home/travis/.gimme/versions/go1.13.10.linux.amd64/src/golang.org/x/tools/go/ast/astutil (from $GOROOT)
	/home/travis/gopath/src/golang.org/x/tools/go/ast/astutil (from $GOPATH)
# cd .; git clone -- https://go.googlesource.com/text /home/travis/gopath/src/golang.org/x/text
Cloning into '/home/travis/gopath/src/golang.org/x/text'...
fatal: remote error: 


Invalid authentication credentials.

Please generate a new identifier:
  https://go.googlesource.com/new-password


package golang.org/x/text/transform: exit status 128

/cc https://github.com/terraform-providers/terraform-provider-github/pull/364#issuecomment-619439871