CI: macOS build

attempt to fix macOS CI blindly, i don't really care if it is
actually working on a real macOS device...

.github/workflows/macos.yml

@@ -17,11 +17,21 @@ jobs:
         with:
           version: '6.7.0'
           modules: 'qtmultimedia'
+      - name: Install Conan
+        id: conan
+        working-directory: ./
+        shell: bash
+        run: |
+          pip3 install wheel setuptools
+          pip3 install conan --upgrade
+          conan --version
+          conan profile detect
       - name: Build
         working-directory: ./
         run: |
-          cmake -B build .
-          cmake --build build -j
+          conan install --requires=icu/74.2 --generator CMakeDeps --generator CMakeToolchain --build=missing
+          cmake . --preset conan-release
+          cmake --build --preset conan-release
       - name: Package
         id: package
         working-directory: ./

CMakeLists.txt

@@ -32,7 +32,7 @@ SET(CMAKE_EXTRA_INCLUDE_FILES)
 
 add_compile_definitions(PATH_VALSIZE=${PATH_VALSIZE})
 
-add_executable(thplayer
+add_executable(thplayer WIN32 MACOSX_BUNDLE
     main.cpp
     loopedpcmstreamer.cpp loopedpcmstreamer.hpp
     mainwindow.cpp mainwindow.hpp
@@ -61,6 +61,3 @@ target_include_directories(thplayer PRIVATE ${thtk_bindir})
 
 target_link_libraries(thplayer thtk Qt6::Widgets Qt6::Multimedia ICU::uc ICU::i18n)
 
-if(WIN32)
-    set_property(TARGET thplayer PROPERTY WIN32_EXECUTABLE True)
-endif()