ci: fix cross-platform build — use cross for Linux ARM64, fail-fast: false

- Linux ARM64: use cross-rs/cross for reliable cross-compilation
- macOS Intel: pin to macos-13 (x86_64 runner)
- fail-fast: false so one platform failure doesn't cancel others

Author: g1e2x87

.github/workflows/release-mcp.yml

@@ -20,23 +20,29 @@ env:
 jobs:
   build:
     strategy:
+      fail-fast: false
       matrix:
         include:
           - target: x86_64-unknown-linux-gnu
             os: ubuntu-latest
             artifact: openpr-mcp-server-linux-amd64
+            use_cross: false
           - target: aarch64-unknown-linux-gnu
             os: ubuntu-latest
             artifact: openpr-mcp-server-linux-arm64
+            use_cross: true
           - target: x86_64-apple-darwin
-            os: macos-latest
+            os: macos-13
             artifact: openpr-mcp-server-macos-amd64
+            use_cross: false
           - target: aarch64-apple-darwin
             os: macos-latest
             artifact: openpr-mcp-server-macos-arm64
+            use_cross: false
           - target: x86_64-pc-windows-msvc
             os: windows-latest
             artifact: openpr-mcp-server-windows-amd64
+            use_cross: false
 
     runs-on: ${{ matrix.os }}
     steps:
@@ -47,31 +53,26 @@ jobs:
         with:
           targets: ${{ matrix.target }}
 
-      - name: Install cross-compilation tools (Linux ARM64)
-        if: matrix.target == 'aarch64-unknown-linux-gnu'
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y gcc-aarch64-linux-gnu g++-aarch64-linux-gnu
-          echo "CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc" >> $GITHUB_ENV
+      - name: Install cross
+        if: matrix.use_cross
+        run: cargo install cross --git https://github.com/cross-rs/cross
 
-      - name: Install OpenSSL (Linux)
-        if: runner.os == 'Linux'
+      - name: Install system deps (Linux native)
+        if: runner.os == 'Linux' && !matrix.use_cross
         run: |
           sudo apt-get update
           sudo apt-get install -y pkg-config libssl-dev libpq-dev
-          if [ "${{ matrix.target }}" = "aarch64-unknown-linux-gnu" ]; then
-            sudo dpkg --add-architecture arm64
-            sudo apt-get update || true
-            sudo apt-get install -y libssl-dev:arm64 libpq-dev:arm64 || true
-            echo "PKG_CONFIG_ALLOW_CROSS=1" >> $GITHUB_ENV
-            echo "OPENSSL_DIR=/usr" >> $GITHUB_ENV
-          fi
 
       - uses: Swatinem/rust-cache@v2
         with:
           key: ${{ matrix.target }}
 
-      - name: Build
+      - name: Build (cross)
+        if: matrix.use_cross
+        run: cross build --release --bin mcp-server --target ${{ matrix.target }}
+
+      - name: Build (native)
+        if: "!matrix.use_cross"
         run: cargo build --release --bin mcp-server --target ${{ matrix.target }}
 
       - name: Package (Unix)