Add peer dependencies for fork-ts-checker-webpack-plugin

[bbrk24]

When using create-react-app with yarn 3, every run of yarn install produces these warnings:

➤ YN0002: │ react-dev-utils@npm:11.0.4 doesn't provide typescript (p79ddf), requested by fork-ts-checker-webpack-plugin
➤ YN0002: │ react-dev-utils@npm:11.0.4 doesn't provide webpack (p2af19), requested by fork-ts-checker-webpack-plugin
➤ YN0000: │ Some peer dependencies are incorrectly met; run yarn explain peer-requirements <hash> for details, where <hash> is the six-letter p-prefixed code

even though typescript and webpack are already provided elsewhere. By specifying these as peer dependencies of react-dev-utils, the warnings are silenced without changing what dependencies are installed.

Example output before the change:

And after the change:

To prove this change doesn't affect the dependency tree, here's the output of npm ls typescript after the change:

And npm ls webpack:

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[beautyfree]

It's actual for me two

[stale]

This pull request has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.

[evelant]

This still needs to be merged to get rid of incorrect warnings

[lesderid]

What's needed to move this forward? Seems like a trivial change and CI errors seem unrelated.

[lesderid]

Duplicates: #11716 #11914

[T3rm1]

Why is no one merging this? @iansu @mrmckeb you are assigned. Please approve so this can finally be merged.

Workaround (adapted from #11982 (comment)):

packageExtensions:
  # awaiting fix: https://github.com/facebook/create-react-app/issues/11982
  'eslint-plugin-flowtype@*':
    peerDependenciesMeta:
      '@babel/plugin-syntax-flow':
        optional: true
      '@babel/plugin-transform-react-jsx':
        optional: true
  # awaiting fix: https://github.com/facebook/create-react-app/pull/11526
  'react-dev-utils@*':
    peerDependencies:
      "typescript": ">=2.7"
      "webpack": ">=4"