Upgrade docker image to golang 1.11.5
Golang 1.11.2 could not build with our updated go.sum checksums
[#163905163](https://www.pivotaltracker.com/story/show/163905163)
-FROM golang:1.11.2 AS build
+FROM golang:1.11.5 AS build
COPY . /go/src/code.cloudfoundry.org/cf-operator
RUN cd /go/src/code.cloudfoundry.org/cf-operator && \
GO111MODULE=on make build && \
@@ -8,5 +8,3 @@ FROM opensuse/leap:15.0
RUN zypper -n in system-user-nobody
USER nobody
COPY --from=build /usr/local/bin/cf-operator /usr/local/bin/cf-operator
-
-
