Use the freeze file in the docker image

.github/workflows/setup.sh

@@ -3,7 +3,7 @@
 sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
 wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
 sudo apt -y update
-sudo apt -y install postgresql-14 g++ mcpp libffi7 llvm
+sudo apt -y install postgresql-14 g++ mcpp libffi7 llvm zlib-devel
 
 wget https://github.com/souffle-lang/souffle/releases/download/2.2/x86_64-ubuntu-2004-souffle-2.2-Linux.deb
 sudo dpkg -i ./x86_64-ubuntu-2004-souffle-2.2-Linux.deb

Dockerfile

@@ -72,7 +72,7 @@ COPY --chown=${USER} scripts/shell-welcome.txt /etc/motd
 COPY --chown=${USER} scripts/.zshrc /home/$USER/.zshrc
 
 # build Haskell dependencies
-COPY --chown=${USER} cabal.project flora.cabal ./
+COPY --chown=${USER} cabal.project flora.cabal cabal.project.freeze ./
 RUN cabal build --only-dependencies -j
 
 # compile Souffle source files