feat: output pnpm version with info/version command

[snitin315]

What kind of change does this PR introduce?
feature

Did you add tests for your changes?
Yes
If relevant, did you update the documentation?
No
Summary
Fixes #3072

Add pnpm information

Does this PR introduce a breaking change?
No

Other information
No

[codecov]

Codecov Report

Merging #3906 (bf2c2df) into master (554aa52) will not change coverage.
Report is 9 commits behind head on master.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3906   +/-   ##
=======================================
  Coverage   90.87%   90.87%           
=======================================
  Files          22       22           
  Lines        1688     1688           
  Branches      486      486           
=======================================
  Hits         1534     1534           
  Misses        154      154           

Files Changed	Coverage Δ
packages/webpack-cli/src/webpack-cli.ts	92.60% <ø> (ø)

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[evenstensberg]

Is this still a draft?

[snitin315]

Yeah. I just need to fix the tests on CI, will do it today.

[evenstensberg]

lgtm

[evenstensberg]

Could you rebase to make commitlint happy?

[snitin315]

@evenstensberg I'll modify the commit message while merging the PR, it should be fine.