docker: Add missing libgraphicsmagick-q16-3; rm rocksdb after build; add smoketest.

docker/ubuntu/22.04/built/Dockerfile

@@ -25,8 +25,13 @@ RUN true \
 && make install \
 && cd .. \
 && rm -rf construct \
+&& rm -rf /usr/src/rocksdb* \
 && apt-get purge -y ${purges} \
 && apt-get autoremove --purge -y \
 && apt-get clean -y \
 && rm -rf /var/lib/apt/lists/* \
+true
+
+RUN true \
+&& construct -smoketest -debug -nomatrix \
 && true

docker/ubuntu/22.04/full/Dockerfile

@@ -3,6 +3,7 @@ FROM jevolk/construct:ubuntu-22.04-base
 ENV packages="\
 opencl-headers \
 libgraphicsmagick1-dev \
+libgraphicsmagick-q16-3 \
 libicu-dev \
 libjemalloc-dev \
 libopencl-clang-dev \