Check peerDependenciesMeta for Optional Dependencies

[devotox]

• Summary

This updates the optional dependencies check to also check peer dependencies meta

The Peer Dependencies Meta field was added to Yarn here:
Yarn#6671

This is used by a number of packages to allow them to be yarn -pnp compatible, most notably Knex.
This feature was added in version 0.20.1

• Test plan

Unit tests are included but cannot be run as it cannot get to that branch of the code in a similar way as the Ignore missing optional dependencies test.

• Description for the changelog

Check Peer Dependencies Meta for Optional Dependencies

[ehmicky]

Thanks a lot @devotox for this PR!

[devotox]

@ehmicky when do you think this will be released and be used with Netlify CLI

[ehmicky]

@devotox This should be live if you use the Netlify Build beta.

[devotox]

@ehmicky I have not been given access to Netlify Build Beta and was wondering how I could use this with Netlify Actions.

Would I need to fork it all?

[ehmicky]

@DavidWells Would it be possible to give @devotox access to the Netlify Build beta?