Merge pull request sysprog21#498 from ChinYikMing/bugfix/xPack-toolch…

…ain-not-found

CI: Fix xPack toolchain not found when using

.github/workflows/main.yml

@@ -44,6 +44,7 @@ jobs:
             sudo apt-get update -q -y
             sudo apt-get install -q -y libsdl2-dev libsdl2-mixer-dev
             .ci/riscv-toolchain-install.sh
+            echo "${{ github.workspace }}/toolchain/bin" >> $GITHUB_PATH
             wget https://apt.llvm.org/llvm.sh
             sudo chmod +x ./llvm.sh
             sudo ./llvm.sh 18