Avoid unnecessary info at non-trace server log level

[dhruvmanila]

Summary

Currently, the log messages emitted by the server includes multiple information which isn't really required most of the time.

Here's the current format:

   0.000755625s DEBUG main ruff_server::session::index::ruff_settings: Indexing settings for workspace: /Users/dhruv/playground/ruff
   0.016334666s DEBUG ThreadId(10) ruff_server::session::index::ruff_settings: Ignored path via `exclude`: /Users/dhruv/playground/ruff/.vscode
   0.019954541s  INFO main ruff_server::session::index: Registering workspace: /Users/dhruv/playground/ruff
   0.020160416s TRACE ruff:main notification{method="textDocument/didOpen"}: ruff_server::server::api: enter
   0.020209625s TRACE ruff:worker:0 request{id=1 method="textDocument/diagnostic"}: ruff_server::server::api: enter
   0.020228166s DEBUG ruff:worker:0 request{id=1 method="textDocument/diagnostic"}: ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/test.py
   0.020359833s  INFO     ruff:main ruff_server::server: Configuration file watcher successfully registered

This PR updates the following:

• Uses current timestamp (same as red-knot) for all log levels instead of the uptime value
• Includes the target and thread names only at the trace level

What this means is that the message is reduced to only important information at DEBUG level:

2025-02-26 11:35:02.198375000 DEBUG Indexing settings for workspace: /Users/dhruv/playground/ruff
2025-02-26 11:35:02.209933000 DEBUG Ignored path via `exclude`: /Users/dhruv/playground/ruff/.vscode
2025-02-26 11:35:02.217165000  INFO Registering workspace: /Users/dhruv/playground/ruff
2025-02-26 11:35:02.217631000 DEBUG Included path via `include`: /Users/dhruv/playground/ruff/lsp/test.py
2025-02-26 11:35:02.217684000  INFO Configuration file watcher successfully registered

while still showing the other information (thread names and target) at trace level:

2025-02-26 11:35:27.819617000 DEBUG main ruff_server::session::index::ruff_settings: Indexing settings for workspace: /Users/dhruv/playground/ruff
2025-02-26 11:35:27.830500000 DEBUG ThreadId(11) ruff_server::session::index::ruff_settings: Ignored path via `exclude`: /Users/dhruv/playground/ruff/.vscode
2025-02-26 11:35:27.837212000  INFO main ruff_server::session::index: Registering workspace: /Users/dhruv/playground/ruff
2025-02-26 11:35:27.837714000 TRACE ruff:main notification{method="textDocument/didOpen"}: ruff_server::server::api: enter
2025-02-26 11:35:27.838019000  INFO ruff:main ruff_server::server: Configuration file watcher successfully registered
2025-02-26 11:35:27.838084000 TRACE ruff:worker:1 request{id=1 method="textDocument/diagnostic"}: ruff_server::server::api: enter
2025-02-26 11:35:27.838205000 DEBUG ruff:worker:1 request{id=1 method="textDocument/diagnostic"}: ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/test.py

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[MichaReiser]

Nice

Nit: It took me a moment to understand what changed compared to today. A short description explaining the changes in addition to how the new output looks would have been helpful