debugger: Fix Rust debugger runnable (#28801)

We ran the locator after configuring the debugger binary which cause the
binary to never use the configuration from the cargo locator. This PR
fixes this by correcting the order of configuration.


co-authored-by Anthony Eid <anthony@zed.dev>

Release Notes:

- N/A

---------

Co-authored-by: piotr <piotr@zed.dev>

crates/project/src/project.rs

@@ -1482,6 +1482,18 @@ impl Project {
                     .update(cx, |dap_store, cx| dap_store.delegate(&worktree, cx))
             })?;
 
+            let task = this.update(cx, |project, cx| {
+                project.dap_store.read(cx).as_local().and_then(|local| {
+                    config.locator.is_some().then(|| {
+                        local.locate_binary(config.clone(), cx.background_executor().clone())
+                    })
+                })
+            })?;
+            let config = if let Some(task) = task {
+                task.await
+            } else {
+                config
+            };
             let binary = adapter
                 .get_binary(&delegate, &config, user_installed_path, cx)
                 .await?;