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/debugger_ui/src/debugger_panel.rs

@@ -296,7 +296,9 @@ impl DebugPanel {
         match event {
             dap_store::DapStoreEvent::DebugClientStarted(session_id) => {
                 let Some(session) = dap_store.read(cx).session_by_id(session_id) else {
-                    return log::error!("Couldn't get session with id: {session_id:?} from DebugClientStarted event");
+                    return log::error!(
+                        "Couldn't get session with id: {session_id:?} from DebugClientStarted event"
+                    );
                 };
 
                 let Some(project) = self.project.upgrade() else {

crates/debugger_ui/src/session/running/variable_list.rs

@@ -437,7 +437,9 @@ impl VariableList {
         });
 
         if res.is_none() {
-            log::error!("Couldn't confirm variable edit because variable doesn't have a leaf name or a parent reference id");
+            log::error!(
+                "Couldn't confirm variable edit because variable doesn't have a leaf name or a parent reference id"
+            );
         }
     }