ci: generate ci scripts using newer g-c-cpp-common (#99)

The downstream dependencies of g-c-cpp-common should be using the latest
release.

Author: coryan

ci/templates/kokoro/docker-fragments.sh

@@ -97,9 +97,9 @@ _EOF_
 
 read_into_variable INSTALL_GOOGLE_CLOUD_CPP_COMMON_FROM_SOURCE <<'_EOF_'
 WORKDIR /var/tmp/build
-RUN wget -q https://github.com/googleapis/google-cloud-cpp-common/archive/v0.13.0.tar.gz && \
-    tar -xf v0.13.0.tar.gz && \
-    cd google-cloud-cpp-common-0.13.0 && \
+RUN wget -q https://github.com/googleapis/google-cloud-cpp-common/archive/v0.16.0.tar.gz && \
+    tar -xf v0.16.0.tar.gz && \
+    cd google-cloud-cpp-common-0.16.0 && \
     cmake -H. -Bcmake-out \
         -DBUILD_TESTING=OFF \
         -DGOOGLE_CLOUD_CPP_TESTING_UTIL_ENABLE_INSTALL=ON && \