chore: Bump Rust edition to 2024 (#27800)

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

Release Notes:

- N/A

crates/context_server_settings/src/context_server_settings.rs

@@ -2,9 +2,9 @@ use std::sync::Arc;
 
 use collections::HashMap;
 use gpui::App;
+use schemars::JsonSchema;
 use schemars::r#gen::SchemaGenerator;
 use schemars::schema::{InstanceType, Schema, SchemaObject};
-use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use settings::{Settings, SettingsSources};