fix: show all CLI specific flags in the minimum help output

[snitin315]

What kind of change does this PR introduce?
bugfix

Did you add tests for your changes?
Yes. Updated snapshots.

If relevant, did you update the documentation?
No.

Summary

webpack-cli offers many additional flags like (--analyze, --json, --env, etc) than pure configuration option (like --stats, --target).

The minimum help output should contain all the additional feature flags webpack-cli offers for better visibility, It's easy to miss these flags in the verbose help output.

Does this PR introduce a breaking change?
No

Other information
NO

[codecov]

Codecov Report

Merging #3354 (f52397b) into next (0dba3db) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             next    #3354   +/-   ##
=======================================
  Coverage   90.83%   90.83%           
=======================================
  Files          22       22           
  Lines        1669     1670    +1     
  Branches      479      479           
=======================================
+ Hits         1516     1517    +1     
  Misses        153      153           

Impacted Files	Coverage Δ
packages/webpack-cli/src/webpack-cli.ts	95.17% <100.00%> (+<0.01%)	⬆️

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