fix(package): update ws to version 6.0.0

[flovilmart]

Closes #599

[codecov]

Codecov Report

Merging #609 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #609      +/-   ##
==========================================
+ Coverage   84.57%   84.59%   +0.01%     
==========================================
  Files          48       48              
  Lines        4039     4076      +37     
  Branches      911      931      +20     
==========================================
+ Hits         3416     3448      +32     
- Misses        623      628       +5

Impacted Files	Coverage Δ
src/ParseFile.js	81.69% <0%> (+1.69%)	⬆️

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