perf(format): lock formatting object

[linrongbin16]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 78.57143% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 72.54%. Comparing base (044bcfd) to head (d4b1f8c).

Files	Patch %	Lines
lua/lsp-progress/client.lua	80.00%	1 Missing ⚠️
lua/lsp-progress/event.lua	75.00%	1 Missing ⚠️
lua/lsp-progress/series.lua	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #121      +/-   ##
==========================================
- Coverage   74.35%   72.54%   -1.82%     
==========================================
  Files           6        6              
  Lines         429      437       +8     
==========================================
- Hits          319      317       -2     
- Misses        110      120      +10     

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