fix(nemo-speech-cpp): skip Linux GPU packaging on Darwin

The shared GPU packaging helper requires Bash associative arrays, which are unavailable in macOS's Bash 3.2. Metal uses system frameworks and has no Linux GPU libraries to bundle, so do not source the helper on Darwin.

Assisted-by: Codex:gpt-5 [Codex]

Author: localai-org-maint-bot

backend/go/nemo-speech-cpp/package.sh

@@ -151,7 +151,7 @@ fi
 # based on BUILD_TYPE so the backend can reach the GPU without the runtime
 # base image shipping those drivers.
 GPU_LIB_SCRIPT="${REPO_ROOT}/scripts/build/package-gpu-libs.sh"
-if [ -f "$GPU_LIB_SCRIPT" ]; then
+if [ "$(uname)" != "Darwin" ] && [ -f "$GPU_LIB_SCRIPT" ]; then
     echo "Packaging GPU libraries for BUILD_TYPE=${BUILD_TYPE:-cpu}..."
     source "$GPU_LIB_SCRIPT" "$CURDIR/package/lib"
     package_gpu_libs