fix that maybe_unused warning

Author: CMurtagh-LGTM

src/wayland/input_method/keyboard_grab.cpp

@@ -1,5 +1,6 @@
 #include "keyboard_grab.hpp"
 
+#include <qdebug.h>
 #include <qtmetamacros.h>
 #include <sys/mman.h>
 #include <wayland-input-method-unstable-v2-client-protocol.h>
@@ -32,7 +33,7 @@ InputMethodKeyboardGrab::~InputMethodKeyboardGrab() {
 }
 
 void InputMethodKeyboardGrab::zwp_input_method_keyboard_grab_v2_keymap(
-    uint32_t [[maybe_unused]] format,
+    uint32_t format [[maybe_unused]],
     int32_t fd,
     uint32_t size
 ) {