Fix ld.lld symlink (#311)

Author: straight-shoota

docker/ubuntu.Dockerfile

@@ -26,6 +26,6 @@ RUN \
   apt-get install -y build-essential llvm-18 lld-18 libedit-dev gdb libffi-dev && \
   apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
-RUN ln -sf /usr/bin/ld.lld-15 /usr/bin/ld.lld
+RUN ln -sf /usr/bin/ld.lld-18 /usr/bin/ld.lld
 
 CMD ["/bin/sh"]