ci: add windows x86 builds

.CMake/toolchain_windows_amd64.cmake

@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: MIT
+
+set(CMAKE_SYSTEM_NAME Windows)
+
+set(CMAKE_SYSTEM_PROCESSOR AMD64)
+
+set(CMAKE_CROSSCOMPILING OFF)
+
+set(CMAKE_GENERATOR_PLATFORM
+    x64
+    CACHE STRING "Platform" FORCE
+)

.CMake/toolchain_windows_x86.cmake

@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: MIT
+
+set(CMAKE_SYSTEM_NAME Windows)
+
+set(CMAKE_SYSTEM_PROCESSOR x86)
+
+set(CMAKE_CROSSCOMPILING OFF)
+
+set(CMAKE_GENERATOR_PLATFORM
+    Win32
+    CACHE STRING "Platform" FORCE
+)

.github/workflows/windows.yml

@@ -12,3 +12,16 @@ jobs:
         run: cmake -B build --toolchain .CMake/toolchain_windows_arm64.cmake .
       - name: Build Project
         run: cmake --build build
+
+  windows-x86:
+    runs-on: windows-2022
+    strategy:
+      fail-fast: false
+      matrix:
+        toolchain: [.CMake/toolchain_windows_x86.cmake, .CMake/toolchain_windows_amd64.cmake]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Generate Project
+        run: cmake -B build --toolchain ${{ matrix.toolchain }} .
+      - name: Build Project
+        run: cmake --build build