⚡ Use mold instead of ld in Dockerfile

Dockerfile

@@ -5,7 +5,7 @@ ARG NUMBER_OF_JOBS=2
 
 # Configure apt and install packages
 RUN apt-get -y update && apt-get -y upgrade && apt-get -y install \
-    make cmake gcc g++ git python3 python3-dev python3-pip libreadline-dev xdg-utils
+    make cmake gcc g++ mold git python3 python3-dev python3-pip libreadline-dev xdg-utils
 
 # Setup Z3
 RUN pip3 install z3-solver==4.10.0
@@ -24,6 +24,7 @@ RUN cmake -S fiction -B fiction/build \
     -DFICTION_PROGRESS_BARS=ON \
     -DMOCKTURTLE_EXAMPLES=OFF \
     -DWARNINGS_AS_ERRORS=OFF \
+    -DCMAKE_EXE_LINKER_FLAGS=-fuse-ld=mold \
     && cmake --build fiction/build --config Release -j${NUMBER_OF_JOBS}
 
 # Automatically start fiction when started in interactive mode