perf: drop readFileSync

[fi3ework]

No description provided.

[codecov-commenter]

Codecov Report

Merging #45 (107f0c8) into main (296e608) will decrease coverage by 0.10%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main      #45      +/-   ##
==========================================
- Coverage   30.13%   30.03%   -0.11%     
==========================================
  Files          13       13              
  Lines         574      576       +2     
  Branches      118      118              
==========================================
  Hits          173      173              
- Misses        401      403       +2     

Impacted Files	Coverage Δ
...ite-plugin-checker/src/checkers/vls/diagnostics.ts	13.38% <0.00%> (-0.22%)	⬇️

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