[build][docker] Add zip and unzip to pulsar-build docker image
### Motivation
zip and unzip are required for building pulsar project since
### Changes
add `zip` and `unzip` into `pulsar-build` docker image, so the docker
image can be used for building website
@@ -28,7 +28,7 @@ RUN apt-get update && \
liblog4cxx-dev libprotobuf-dev libboost-all-dev google-mock libgtest-dev \
libjsoncpp-dev libxml2-utils protobuf-compiler wget \
curl doxygen openjdk-8-jdk-headless clang-format-5.0 \
- gnupg2 golang-1.10-go
+ gnupg2 golang-1.10-go zip unzip
# Compile and install gtest
RUN cd /usr/src/gtest && cmake . && make && cp libgtest.a /usr/lib
