chore: Bump Rust edition to 2024 (#27800)

Follow-up to https://github.com/zed-industries/zed/pull/27791

Release Notes:

- N/A

crates/extensions_ui/src/components/extension_card.rs

@@ -1,4 +1,4 @@
-use gpui::{prelude::*, AnyElement};
+use gpui::{AnyElement, prelude::*};
 use smallvec::SmallVec;
 use ui::prelude::*;
 

crates/extensions_ui/src/components/feature_upsell.rs

@@ -1,6 +1,6 @@
 use gpui::{AnyElement, Div, StyleRefinement};
 use smallvec::SmallVec;
-use ui::{prelude::*, ButtonLike};
+use ui::{ButtonLike, prelude::*};
 
 #[derive(IntoElement)]
 pub struct FeatureUpsell {