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/commit_tooltip.rs

@@ -49,7 +49,7 @@ impl<'a> CommitAvatar<'a> {
         &'a self,
         window: &mut Window,
         cx: &mut Context<CommitTooltip>,
-    ) -> Option<impl IntoElement> {
+    ) -> Option<impl IntoElement + use<>> {
         let remote = self
             .commit
             .message