ROCm: reduce size of builds (#1819)

Author: matthewdouglas

.github/scripts/build-rocm.sh

@@ -19,7 +19,7 @@ if [ "${build_os:0:6}" == ubuntu ]; then
         -w /src -v "$PWD:/src" "$image" sh -c \
         "apt-get update \
       && pip install cmake==3.31.6 \
-      && cmake -DCOMPUTE_BACKEND=hip -DBNB_ROCM_ARCH=\"${bnb_rocm_arch}\" . \
+      && cmake -DCOMPUTE_BACKEND=hip -DCMAKE_BUILD_TYPE=MinSizeRel -DCMAKE_HIP_FLAGS=\"--offload-compress\" -DBNB_ROCM_ARCH=\"${bnb_rocm_arch}\" . \
       && cmake --build ."
 fi