Update dependencies and pass all clippy's (#636)

* Cargo update

https://pastebin.com/raw/KWNuJD9u

* Cargo clippy +nightly

* Remove deprecated clippy

* Fix unbalanced backtick (now passes cargo {+nightly,} clippy)

egui_glium/src/lib.rs

@@ -520,7 +520,7 @@ impl EguiGlium {
     pub fn on_event(&mut self, event: &glium::glutin::event::WindowEvent<'_>) {
         crate::input_to_egui(
             self.egui_ctx.pixels_per_point(),
-            &event,
+            event,
             self.clipboard.as_mut(),
             &mut self.input_state,
         );