Plugin cannot be found by CMake

[Akapaka]

In the latest Qt version: 6.2.4, the following plugin cannot be found by cmake:

$<TARGET_FILE:Qt6::QWindowsIntegrationPlugin>

Full command used:

add_custom_command(TARGET "test" POST_BUILD
                   COMMAND ${CMAKE_COMMAND} -E copy_if_different
                   $<TARGET_FILE:Qt6::Core> $<TARGET_FILE:Qt6::Gui> $<TARGET_FILE:Qt6::Widgets> 
                   $<TARGET_FILE:Qt6::QWindowsIntegrationPlugin> $<TARGET_FILE_DIR:test>)