chore: upgrade webpack

[anshumanv]

• This is a bugfix
• This is a feature
• This is a code refactor
• This is a test update
• This is a docs update
• This is a metadata update

For Bugs and Features; did you add new tests?

existing

Motivation / Use-Case

upgrade deps

Breaking Changes

no

Additional Info

#3470

[codecov]

Codecov Report

Merging #3473 (bdcab1c) into master (614451e) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3473   +/-   ##
=======================================
  Coverage   94.36%   94.36%           
=======================================
  Files          26       26           
  Lines        1277     1277           
  Branches      403      403           
=======================================
  Hits         1205     1205           
  Misses         66       66           
  Partials        6        6           

Impacted Files	Coverage Δ
bin/cli-flags.js	100.00% <ø> (ø)
lib/utils/normalizeOptions.js	96.55% <0.00%> (ø)

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