yuzu/util: Replace lock_guard with scoped_lock

src/yuzu/util/controller_navigation.cpp

@@ -39,7 +39,7 @@ void ControllerNavigation::TriggerButton(Settings::NativeButton::Values native_b
 }
 
 void ControllerNavigation::ControllerUpdateEvent(Core::HID::ControllerTriggerType type) {
-    std::lock_guard lock{mutex};
+    std::scoped_lock lock{mutex};
     if (!Settings::values.controller_navigation) {
         return;
     }