chore: Prepare for Rust edition bump to 2024 (without autofix) (#27791)

Successor to #27779 - in this PR I've applied changes manually, without
futzing with if let lifetimes at all.

Release Notes:

- N/A

crates/editor/src/editor.rs

@@ -2428,7 +2428,11 @@ impl Editor {
             background_executor.timer(SERIALIZATION_THROTTLE_TIME).await;
             DB.save_editor_folds(editor_id, workspace_id, db_folds)
                 .await
-                .with_context(|| format!("persisting editor folds for editor {editor_id}, workspace {workspace_id:?}"))
+                .with_context(|| {
+                    format!(
+                        "persisting editor folds for editor {editor_id}, workspace {workspace_id:?}"
+                    )
+                })
                 .log_err();
         });
     }
@@ -6200,7 +6204,9 @@ impl Editor {
     fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
         if self.tasks.insert(key, value).is_some() {
             // This case should hopefully be rare, but just in case...
-            log::error!("multiple different run targets found on a single line, only the last target will be rendered")
+            log::error!(
+                "multiple different run targets found on a single line, only the last target will be rendered"
+            )
         }
     }