feat: fuzz testing for JavaScript language parser

[raffifu]

Fixes #3327

Added fuzz testing for JavaScriptParser with generating package-lock.json . The file schema is based on https://docs.npmjs.com/cli/v10/configuring-npm/package-lock-json

Screenshot testing:

[codecov-commenter]

Codecov Report

Merging #3440 (0014fd4) into main (e45767a) will decrease coverage by 0.38%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #3440      +/-   ##
==========================================
- Coverage   80.29%   79.92%   -0.38%     
==========================================
  Files         758      758              
  Lines       11616    11616              
  Branches     1571     1571              
==========================================
- Hits         9327     9284      -43     
- Misses       1853     1910      +57     
+ Partials      436      422      -14     

Flag	Coverage Δ
longtests	74.81% <ø> (-0.02%)	⬇️
win-longtests	77.91% <ø> (-0.38%)	⬇️

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[terriko]

This looks good, thank you! Now I've got to go set up a machine where I can run this for a while and see if it finds anything interesting...