Fix CI workflow

Author: kzhdev

.github/workflows/ci.yml

@@ -42,6 +42,11 @@ jobs:
         shell: pwsh
         run: .\vcpkg\bootstrap-vcpkg.bat -disableMetrics
 
+      # slick-net does not support arm64; force x64 on Apple Silicon runners.
+      - name: Force x64 triplet (macOS)
+        if: runner.os == 'macOS'
+        run: echo "VCPKG_DEFAULT_TRIPLET=x64-osx" >> $GITHUB_ENV
+
       - name: Cache vcpkg packages
         uses: actions/cache@v4
         with:
@@ -57,9 +62,14 @@ jobs:
 
       - name: Configure
         run: |
+          EXTRA_ARGS=""
+          if [[ "$RUNNER_OS" == "macOS" ]]; then
+            EXTRA_ARGS="-DCMAKE_OSX_ARCHITECTURES=x86_64"
+          fi
           cmake -S . -B build \
             -DCMAKE_TOOLCHAIN_FILE="$VCPKG_ROOT/scripts/buildsystems/vcpkg.cmake" \
-            -DCMAKE_BUILD_TYPE=Release
+            -DCMAKE_BUILD_TYPE=Release \
+            $EXTRA_ARGS
 
       - name: Build
         run: cmake --build build --config Release --parallel