depends: Build qt package for FreeBSD hosts

src/qt/CMakeLists.txt

@@ -16,7 +16,7 @@ get_target_property(qt_lib_type Qt6::Core TYPE)
 function(import_plugins target)
   if(qt_lib_type STREQUAL "STATIC_LIBRARY")
     set(plugins Qt6::QMinimalIntegrationPlugin)
-    if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+    if(CMAKE_SYSTEM_NAME MATCHES "^(Linux|FreeBSD)$")
       list(APPEND plugins Qt6::QXcbIntegrationPlugin)
     elseif(WIN32)
       list(APPEND plugins Qt6::QWindowsIntegrationPlugin Qt6::QModernWindowsStylePlugin)