Update Smithay, adjusting for API changes

The main changes are those related to pointer gestures. Which are a bit
verbose but not too difficult.

src/backend/winit.rs

@@ -30,7 +30,7 @@ use smithay::{
     utils::Transform,
     wayland::dmabuf::DmabufFeedbackBuilder,
 };
-use std::cell::RefCell;
+use std::{cell::RefCell, time::Duration};
 use tracing::{error, info, warn};
 
 #[cfg(feature = "debug")]
@@ -94,7 +94,7 @@ impl WinitState {
                         state.clock.now(),
                         self.output
                             .current_mode()
-                            .map(|mode| mode.refresh as u32)
+                            .map(|mode| Duration::from_secs_f64(1_000.0 / mode.refresh as f64))
                             .unwrap_or_default(),
                         0,
                         wp_presentation_feedback::Kind::Vsync,