tmp: rebuild llvm18 docker image without changes

Author: lqd

src/ci/docker/host-x86_64/x86_64-gnu-llvm-18/Dockerfile

@@ -60,3 +60,5 @@ RUN /scripts/build-gccjit.sh /scripts
 
 COPY scripts/x86_64-gnu-llvm.sh /tmp/script.sh
 ENV SCRIPT /tmp/script.sh
+
+# dummy comment to update the dockerfile and have it rebuild the image