fix: the --progress option is working with --json

[alexander-akait]

What kind of change does this PR introduce?

bugfix

Did you add tests for your changes?

WIP

If relevant, did you update the documentation?

No need

Summary

fixes #1535

Does this PR introduce a breaking change?

No

Other information

No

[codecov]

Codecov Report

Merging #2276 (a9ab3fb) into master (bb16d44) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #2276   +/-   ##
=======================================
  Coverage   68.00%   68.00%           
=======================================
  Files          63       63           
  Lines        2435     2435           
  Branches      548      547    -1     
=======================================
  Hits         1656     1656           
  Misses        779      779           

Impacted Files	Coverage Δ
packages/webpack-cli/lib/plugins/CLIPlugin.js	100.00% <100.00%> (ø)
packages/webpack-cli/lib/webpack-cli.js	91.01% <100.00%> (+0.01%)	⬆️

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