update milvus ubuntu18.04 build enviroment images version to 0.5.1

Former-commit-id: 30aff373647040a72d5923e3087b9b5c44e5bb9c

ci/jenkins/pod/milvus-build-env-pod.yaml

@@ -8,7 +8,7 @@ metadata:
 spec:
   containers:
   - name: milvus-build-env
-    image: registry.zilliz.com/milvus/milvus-build-env:v0.5.0-ubuntu18.04
+    image: registry.zilliz.com/milvus/milvus-build-env:v0.5.1-ubuntu18.04
     env:
     - name: POD_IP
       valueFrom:

docker/build_env/ubuntu16.04/Dockerfile

@@ -8,7 +8,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends wget && \
     apt-key add /tmp/GPG-PUB-KEY-INTEL-SW-PRODUCTS-2019.PUB && \
     sh -c 'echo deb https://apt.repos.intel.com/mkl all main > /etc/apt/sources.list.d/intel-mkl.list' && \
     apt-get update && apt-get install -y --no-install-recommends \
-    git flex bison gfortran \
+    git flex bison gfortran lsb-core \
     curl libtool automake libboost1.58-all-dev libssl-dev pkg-config libcurl4-openssl-dev \
     clang-format-6.0 clang-tidy-6.0 \
     lcov mysql-client libmysqlclient-dev intel-mkl-gnu-2019.4-243 intel-mkl-core-2019.4-243 && \

docker/build_env/ubuntu18.04/Dockerfile

@@ -8,7 +8,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends wget && \
     apt-key add /tmp/GPG-PUB-KEY-INTEL-SW-PRODUCTS-2019.PUB && \
     sh -c 'echo deb https://apt.repos.intel.com/mkl all main > /etc/apt/sources.list.d/intel-mkl.list' && \
     apt-get update && apt-get install -y --no-install-recommends \
-    git flex bison gfortran \
+    git flex bison gfortran lsb-core \
     curl libtool automake libboost-all-dev libssl-dev pkg-config libcurl4-openssl-dev \
     clang-format-6.0 clang-tidy-6.0 \
     lcov mysql-client libmysqlclient-dev intel-mkl-gnu-2019.4-243 intel-mkl-core-2019.4-243 && \