workspace: Do not attempt to unnecessarily update jump list on worktree updates (#46882)

It should be a no-op but causes massive main thread hangs on windows due
to the winapi calls this emits, restores the behavior pre
github.com/zed-industries/zed/pull/46256 without reverting the main
changes of that.

Release Notes:

- N/A *or* Added/Fixed/Improved ...
1321aa932cLukas Wirth committed on 1/15/2026, 11:29:40 AM· committed by GitHubparentb4d1ba7
1 file changedLine totals unavailable