Refactor cross-platform CMake workflow

Updated the CMake workflow for cross-platform builds, simplifying the matrix configuration and removing unused variables.

Author: MaelProgramming

.github/workflows/cmake-multi-platform.yml

@@ -0,0 +1,27 @@
+name: Cross-Platform CMake Build
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    name: Build on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Configure CMake
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=Release
+
+    - name: Build project
+      run: cmake --build ${{github.workspace}}/build --config Release