chore: update memfs

[alexander-akait]

This PR contains a:

• bugfix
• new feature
• code refactor
• test update
• documentation update
• typo fix
• metadata update

Motivation / Use-Case

fixes #1674

Breaking Changes

Yes due https://github.com/streamich/memfs/releases/tag/v4.2.0

Especial due:

• mkdirp and mkdripSync were removed, they were deprecated before. (You can pass the "recursive" flag to mkdir and mkdirSync, instead.)

Additional Info

Because it is a breaking change I want to increase minimum Node.js version and update our deps (will do in the next PR)

Also we need update it in webpack-dev-server (and do a major release, I will try to do it soon)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (be844c9) 96.82% compared to head (984c1eb) 96.82%.
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1693   +/-   ##
=======================================
  Coverage   96.82%   96.82%           
=======================================
  Files           9        9           
  Lines         378      378           
  Branches      115      115           
=======================================
  Hits          366      366           
  Misses         11       11           
  Partials        1        1           

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