Update automake from 1.16.2 to 1.16.3 (#978)

Author: mayeut

docker/Dockerfile

@@ -39,8 +39,8 @@ RUN export AUTOCONF_ROOT=autoconf-2.70 && \
     manylinux-entrypoint /build_scripts/install-autoconf.sh
 
 COPY build_scripts/install-automake.sh /build_scripts/
-RUN export AUTOMAKE_ROOT=automake-1.16.2 && \
-    export AUTOMAKE_HASH=b2f361094b410b4acbf4efba7337bdb786335ca09eb2518635a09fb7319ca5c1 && \
+RUN export AUTOMAKE_ROOT=automake-1.16.3 && \
+    export AUTOMAKE_HASH=ce010788b51f64511a1e9bb2a1ec626037c6d0e7ede32c1c103611b9d3cba65f && \
     export AUTOMAKE_DOWNLOAD_URL=http://ftp.gnu.org/gnu/automake && \
     manylinux-entrypoint /build_scripts/install-automake.sh