ci.yml: Add aarch64 targets for GNU/Linux and Windows

Signed-off-by: Andrew Gunnerson <[email protected]>

Author: chenxiaolong

.github/workflows/ci.yml

@@ -21,8 +21,12 @@ jobs:
         artifact:
           - os: ubuntu-latest
             name: x86_64-unknown-linux-musl
+          - os: ubuntu-24.04-arm
+            name: aarch64-unknown-linux-musl
           - os: windows-latest
             name: x86_64-pc-windows-gnu
+          - os: windows-11-arm
+            name: aarch64-pc-windows-gnullvm
           - os: macos-latest
             name: universal-apple-darwin
             targets:
@@ -51,8 +55,17 @@ jobs:
               --git https://github.com/chenxiaolong/cargo-android \
               --tag v0.1.3
 
+      - name: Install llvm-mingw
+        if: matrix.artifact.os == 'windows-11-arm'
+        shell: bash
+        run: |
+          version=20251021
+          curl -fLO "https://github.com/mstorsjo/llvm-mingw/releases/download/${version}/llvm-mingw-${version}-ucrt-aarch64.zip"
+          7z x "llvm-mingw-${version}-ucrt-aarch64.zip"
+          echo "$(pwd -W)/llvm-mingw-${version}-ucrt-aarch64/bin" >> "${GITHUB_PATH}"
+
       - name: Install musl-gcc
-        if: matrix.artifact.os == 'ubuntu-latest'
+        if: endsWith(matrix.artifact.name, '-musl')
         uses: awalsh128/cache-apt-pkgs-action@v1
         with:
           packages: musl-tools