fix(reh): build riscv [skip ci]

build/linux/package_reh.sh

@@ -55,9 +55,11 @@ elif [[ "${VSCODE_ARCH}" == "ppc64le" ]]; then
   export VSCODE_SYSROOT_VERSION='20240129-253798'
   export USE_GNUPP2A=1
 elif [[ "${VSCODE_ARCH}" == "riscv64" ]]; then
+  NODE_VERSION="20.16.0"
   VSCODE_REMOTE_DEPENDENCIES_CONTAINER_NAME="vscodium/vscodium-linux-build-agent:focal-devtoolset-riscv64"
 
   export VSCODE_SKIP_SETUPENV=1
+  export VSCODE_NODEJS_SITE='https://unofficial-builds.nodejs.org'
 elif [[ "${VSCODE_ARCH}" == "loong64" ]]; then
   NODE_VERSION="20.16.0"
   VSCODE_REMOTE_DEPENDENCIES_CONTAINER_NAME="vscodium/vscodium-linux-build-agent:beige-devtoolset-loong64"