Fix log timestamps not using local timezone (#16400)

Get time offset by time crate will fail if there are mutli threads. So
call `config_builder.set_time_offset_to_local()` is useless.

Closes #16397

after:
<img width="664" alt="image"
src="https://github.com/user-attachments/assets/2b15fa06-c411-44f9-9ea1-871d25eb577f">

Release Notes:

- Fixed Local Timezone not showing Zed.log

crates/zed/Cargo.toml

@@ -97,6 +97,7 @@ tab_switcher.workspace = true
 supermaven.workspace = true
 task.workspace = true
 tasks_ui.workspace = true
+time.workspace =  true
 telemetry_events.workspace = true
 terminal_view.workspace = true
 theme.workspace = true