Upgrade to the Rust 2024 edition (#2367)

* Update to rust 2024 edition

* Fixes

* Clean up imports

* Cargo fmt again

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

node-graph/gcore/src/text/font_cache.rs

@@ -1,5 +1,4 @@
 use dyn_any::DynAny;
-
 use std::collections::HashMap;
 
 /// A font type (storing font family and font style and an optional preview URL)

node-graph/gcore/src/text/to_path.rs

@@ -1,7 +1,5 @@
 use crate::vector::PointId;
-
 use bezier_rs::{ManipulatorGroup, Subpath};
-
 use glam::DVec2;
 use rustybuzz::ttf_parser::{GlyphId, OutlineBuilder};
 use rustybuzz::{GlyphBuffer, UnicodeBuffer};