feat: dependency syncing checker

[anthonyshew]

Description

Dependency checker to see if everything is in sync in all your package.jsons. Reports errors when there are multiple versions of the same direct dependency in the repo.

Also features:

Ignoring a dependency:

  "dependencies": {
    "typescript": {
      "ignore": true,
      "packages": ["*"],
    }

Ignoring a dependency:

  "dependencies": {
    "typescript": {
      "packages": ["*"],
      "pinToVersion": "1.0.0"
    }

Specific package(s):

  "dependencies": {
    "typescript": {
      "ignore": true,
      "packages": ["@repo/ui"],
    }

Note that I am not attached to this API. If it seems unintuitive or otherwise lacking in some way, I'm happy to make adjustments.

Testing Instructions

Wrote some tests - but do try it out!

TODO:

• Monorepo only
• Not sure that packages is actually working for pinToVersion? Need to verify.
• Integration tests
• schema.json
• Bikeshed command name
• What's printed to the console for parsing errors for ignore and pinToVersion is not right
• Flag for --only=prod and --only=dev?
• Accept ranges in pinToVersion?
• Documentation

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