ci: update to use webpack v5

[snitin315]

What kind of change does this PR introduce?
update ci

Did you add tests for your changes?
Already present
If relevant, did you update the documentation?
NA
Summary

Update CI to use webpack 5. Follow up #177

Does this PR introduce a breaking change?

Other information

[codecov]

Codecov Report

Merging #193 (01ecc76) into master (0051d1f) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #193   +/-   ##
=======================================
  Coverage   84.28%   84.28%           
=======================================
  Files           3        3           
  Lines         210      210           
  Branches       43       43           
=======================================
  Hits          177      177           
  Misses         29       29           
  Partials        4        4           

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