chore: add pnpm as binary in info

[rishabh3112]

What kind of change does this PR introduce?
chore / feat

Did you add tests for your changes?
WIP

If relevant, did you update the documentation?
N/A

Summary
Added pnpm as required binary.
Although pnpm isn't supported in envinfo, still this PR has required use case.

Does this PR introduce a breaking change?
Nope

Other information

[codecov]

Codecov Report

Merging #3072 (39dd422) into master (754615b) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3072   +/-   ##
=======================================
  Coverage   94.86%   94.86%           
=======================================
  Files          22       22           
  Lines        1615     1615           
  Branches      480      480           
=======================================
  Hits         1532     1532           
  Misses         83       83           

Impacted Files	Coverage Δ
packages/info/src/index.ts	100.00% <ø> (ø)

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[rishabh3112]

Tasks

• Created issue as envinfo for support. (feat: add pnpm option in Binaries tabrindle/envinfo#216) (Got Approval 🥳 )
• Create PR at envinfo (PR created : feat: add pnpm function in binaries tabrindle/envinfo#224) (Waiting for Merge)
• Update PR after support is published
• Add tests
• Merge

[evenstensberg]

Lgtm meanwhile here, but not RTM (ready to merge)

[rishabh3112]

@webpack/cli-team Made a friendly ping on the issue at envinfo. Lets see...

[rishabh3112]

Update: Created PR at tabrindle/envinfo#224

[rishabh3112]

The PR on envinfo has been inactive for a while, and main maintainer is inactive for over a long time given last publish on npm was over a year ago.

I guess we can patch it into a fork and deploy it, wdyt @alexander-akait? if yes I will do that.

[rishabh3112]

@webpack/cli-team One last try I have pinged him on PR, lets see.

[rishabh3112]

Got a review there, would be working on that now.