Add `#[track_caller]` to gpui foreground executor spawn methods (#24103)

Use of this location info was added in #21758 to help with diagnosing
remote_server panics on drop of tasks on a different thread.

Release Notes:

- N/A
691de6b4b3Michael Sloan committed on 2/2/2025, 7:20:17 PM· committed by GitHubparent422d57e
5 files changedLine totals unavailable