vcpkg/linux: Avoid dependency on libsystemd/liblzma

libsystemd which is required by dbus has an optional dependency on liblzma and since we don't need it we can just strip it out of dbus

dependencies/vcpkg_overlay_ports_linux/dbus/pkgconfig.patch

@@ -0,0 +1,21 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index caef738..b878f42 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -724,11 +724,11 @@ add_custom_target(help-options
+ #
+ if(DBUS_ENABLE_PKGCONFIG)
+     set(PLATFORM_LIBS pthread ${LIBRT})
+-    if(PKG_CONFIG_FOUND)
+-        # convert lists of link libraries into -lstdc++ -lm etc..
+-        foreach(LIB ${CMAKE_C_IMPLICIT_LINK_LIBRARIES} ${PLATFORM_LIBS})
+-            set(LIBDBUS_LIBS "${LIBDBUS_LIBS} -l${LIB}")
+-        endforeach()
++    if(1)
++        set(LIBDBUS_LIBS "${CMAKE_THREAD_LIBS_INIT}")
++        if(LIBRT)
++            string(APPEND LIBDBUS_LIBS " -lrt")
++        endif()
+         set(original_prefix "${CMAKE_INSTALL_PREFIX}")
+         if(DBUS_RELOCATABLE)
+             set(pkgconfig_prefix "\${pcfiledir}/../..")