chore: Bump Rust edition to 2024 (#27800)

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

Release Notes:

- N/A

crates/assistant_slash_commands/src/tab_command.rs

@@ -10,9 +10,9 @@ use gpui::{Task, WeakEntity};
 use language::{BufferSnapshot, CodeLabel, HighlightId, LspAdapterDelegate};
 use std::{
     path::PathBuf,
-    sync::{atomic::AtomicBool, Arc},
+    sync::{Arc, atomic::AtomicBool},
 };
-use ui::{prelude::*, ActiveTheme, App, Window};
+use ui::{ActiveTheme, App, Window, prelude::*};
 use util::ResultExt;
 use workspace::Workspace;