CMake multi-config build still build some debug tools

I use CMake 3.19.0 to build latest qt6.

cmake "../qt6" -DCMAKE_INSTALL_PREFIX=D:\Qt\6.0.0-msvc2019-x64-shared -G"Ninja Multi-Config" -DCMAKE_CONFIGURATION_TYPES=Release;Debug

According to https://codereview.qt-project.org/c/qt/qtbase/+/309309 , since CMake 3.19, debug tools won't be built in debug_and_release build.

However, following debug tools are still built (can be found in <install_dir>/bin/Debug/)：

• cmake_automoc_parser.exe
• moc.exe
• rcc.exe
• uic.exe
• qmltyperegistrar.exe
• qmlcachegen.exe
• qmltime.exe