Chore: Add lerna as peer dependency

[jackw]

What Changed

Added lerna as a peerDependency to auto and auto/npm as they both internally call lerna with npx.

Why

Calling lerna with npx without a local copy installed could cause bugs as it will either pull the latest version from the npm registry or use a locally cached version. By setting peer dependencies lerna will either be installed when auto is installed or show a warning telling the user that lerna is a missing dependency.

@hipstersmoothie not 💯 sure about the version of lerna to support here. Do we want to widen the semver range for something like >6.0.0 <8.0.0? I'm also unsure which type of change this should be.

Todo:

• Add tests
• Add docs

Change Type

Indicate the type of change your pull request is:

• documentation
• patch
• minor
• major

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.56%. Comparing base (f6af66b) to head (7f3c773).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2441      +/-   ##
==========================================
- Coverage   80.63%   80.56%   -0.08%     
==========================================
  Files          69       69              
  Lines        5680     5680              
  Branches     1277     1277              
==========================================
- Hits         4580     4576       -4     
- Misses        718      719       +1     
- Partials      382      385       +3     

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[hipstersmoothie]

I think we should refactor a little bit so that all users of the all-contributors plugin don''t need to install lerna

In both places it could be an optionalPeerDep probably

[hipstersmoothie]

Hmmm it probably doesn't make sense for core to depend on lerna...

[hipstersmoothie]

only the all contributors plugin depends on that.

I think we should either:

1. move that function into a dep
2. just copy the function into the 2 places we use it (npm and all-contributors)

I think 2 is better. then we can say lerna is an optionalPeerDep of the all-contributors plugin