Adding a current thread ID to the hls log.

[soulomoon]

When I am trying to fix #4152,
I added a current thread ID to the logger,
I find it can give us an effective debugging eperience on race issues.
Any reason against it. I would like some opinions on this

Something like this

ThreadId 19 | 2024-04-11T03:17:33.383209Z | Info | Started LSP server in 0.01s
ThreadId 19 | 2024-04-11T03:17:33.452743Z | Debug | ghc --print-libdir
ThreadId 19 | 2024-04-11T03:17:33.453779Z | Debug | Setting initial dynflags...
ThreadId 19 | 2024-04-11T03:17:33.453819Z | Debug | shouldRunSubset: True
ThreadId 29 | 2024-04-11T03:17:33.453879Z | Debug | Initializing exports map from hiedb
ThreadId 29 | 2024-04-11T03:17:33.454034Z | Debug | Done initializing exports map from hiedb. Size: 0

[fendor]

Sounds good to me and should be easy enough to add. Perhaps it is not that useful for normal user logs, but at least for tests we can enable it unconditionally, imo.