Try prebuilts generation via CI

.github/workflows/prebuilts.yml

@@ -0,0 +1,139 @@
+name: VCMI - dependencies
+
+on:
+  push:
+  workflow_dispatch:
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        include:
+#          - platform: mac-intel
+#            os: macos-13
+#            test: 0
+#            pack: 1
+#            pack_type: Release
+#            extension: dmg
+#            preset: macos-conan-ninja-release
+#            conan_profile: macos-intel
+#            conan_options: --options with_apple_system_libs=True
+#            artifact_platform: intel
+#          - platform: mac-arm
+#            os: macos-13
+#            test: 0
+#            pack: 1
+#            pack_type: Release
+#            extension: dmg
+#            preset: macos-arm-conan-ninja-release
+#            conan_profile: macos-arm
+#            conan_options: --options with_apple_system_libs=True
+#            artifact_platform: arm
+#          - platform: ios
+#            os: macos-13
+#            test: 0
+#            pack: 1
+#            pack_type: Release
+#            extension: ipa
+#            preset: ios-release-conan-ccache
+#            conan_profile: ios-arm64
+#            conan_options: --options with_apple_system_libs=True
+#          - platform: msvc
+#            os: windows-latest
+#            test: 0
+#            pack: 1
+#            pack_type: RelWithDebInfo
+#            extension: exe
+#            preset: windows-msvc-release
+          - platform: mingw
+            os: ubuntu-22.04
+            test: 0
+            pack: 1
+            pack_type: Release
+            extension: exe
+            cpack_args: -D CPACK_NSIS_EXECUTABLE=`which makensis`
+            cmake_args: -G Ninja
+            preset: windows-mingw-conan-linux
+            conan_profile: mingw64-linux.jinja
+          - platform: mingw-32
+            os: ubuntu-22.04
+            test: 0
+            pack: 1
+            pack_type: Release
+            extension: exe
+            cpack_args: -D CPACK_NSIS_EXECUTABLE=`which makensis`
+            cmake_args: -G Ninja
+            preset: windows-mingw-conan-linux
+            conan_profile: mingw32-linux.jinja
+#          - platform: android-32
+#            os: macos-14
+#            extension: apk
+#            preset: android-conan-ninja-release
+#            conan_profile: android-32
+#            conan_options: --conf tools.android:ndk_path=$ANDROID_NDK_ROOT
+#            artifact_platform: armeabi-v7a
+#          - platform: android-64
+#            os: macos-14
+#            extension: apk
+#            preset: android-conan-ninja-release
+#            conan_profile: android-64
+#            conan_options: --conf tools.android:ndk_path=$ANDROID_NDK_ROOT
+#            artifact_platform: arm64-v8a
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        shell: bash
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Dependencies
+      run: source '${{github.workspace}}/CI/${{matrix.platform}}/before_install.sh'
+      env:
+        VCMI_BUILD_PLATFORM: x64
+
+    - name: Remove old packages
+      run: |
+        ls -la ~/.conan/
+        ls -la ~/.conan/data/
+        ls -la ~/.conan/data/ffmpeg
+        ls -la ~/.conan/data/ffmpeg/4.4.3/
+        ls -la ~/.conan/data/ffmpeg/4.4.3/_/
+        ls -la ~/.conan/data/ffmpeg/4.4.3/_/_/
+        ls -la ~/.conan/data/ffmpeg/4.4.3/_/_/package
+        rm -rf ~/.conan/data/ffmpeg/4.4.3/_/_/package
+
+    - uses: actions/setup-python@v5
+      if: "${{ matrix.conan_profile != '' }}"
+      with:
+        python-version: '3.10'
+
+    - name: Conan setup
+      if: "${{ matrix.conan_profile != '' }}"
+      run: |
+        pip3 install 'conan<2.0'
+        conan profile new default --detect
+        conan install . \
+          --install-folder=conan-generated \
+          --no-imports \
+          --build=missing \
+          --profile:build=default \
+          --profile:host=CI/conan/${{ matrix.conan_profile }} \
+          ${{ matrix.conan_options }}
+      env:
+        GENERATE_ONLY_BUILT_CONFIG: 1
+
+    - name: Conan cleanup
+      if: "${{ matrix.conan_profile != '' }}"
+      run: "conan remove --builds --src --force '*'"
+
+    - name: Create dependencies archive
+      if: "${{ matrix.conan_profile != '' }}"
+      run: "tar -czvf dependencies.tgz -C ~/.conan data"
+
+    - name: Artifacts
+      uses: actions/upload-artifact@v4
+      with:
+        name: ${{ matrix.platform }}
+        compression-level: 0
+        path: 'dependencies.tgz'