deps: ignore dependabot for peer dependencies

[agilgur5]

Description

• several of the dependencies in the tree are only there because they
  are peerDeps, and not because we directly depend on them

  • they should only be upgraded in tandem with the dep(s) they are
    peers of and pretty much never in isolation

• Greenkeeper made several PRs for peers which previously caused an
  erroneous/buggy update of @types/jest to 25 many months before Jest
  was upgraded to 25

  • and honestly those Greenkeeper PRs for peers had confused me a
    good deal too

Tags

• chore(package): update @types/jest to version 25.1.0 #462 was a previous erroneous PR due to Greenkeeper updating peers, which was reverted in Revert "chore(package): update @types/jest to version 25.1.0 (#462)" #470
• This directly addresses some of my previous confusion from eslint-config-react-app peers in Update eslint-plugin-flowtype to the latest version 🚀 #640 (comment) / Update eslint-plugin-react-hooks to the latest version 🚀 #642 (comment) / Update @typescript-eslint/parser to the latest version 🚀 #728 (comment) / Update @typescript-eslint/eslint-plugin to the latest version 🚀 #729 (comment) / Use compatible eslint-config-react-app and eslint-plugin-react-hooks. #890 (comment)
• Update jest-watch-typeahead to the latest version 🚀 #709 updated jest-watch-typeahead to a version for Jest 26 before we even upgraded to Jest 25

Let's close some of the confusing Greenkeeper peer update PRs now that this has been configured:

• Closes Update eslint-plugin-flowtype to the latest version 🚀 #640
• Closes Update eslint-plugin-react-hooks to the latest version 🚀 #642
• Closes Update @typescript-eslint/parser to the latest version 🚀 #728
• Closes Update @typescript-eslint/eslint-plugin to the latest version 🚀 #729
• Closes Update jest-watch-typeahead to the latest version 🚀 #709

Review Notes

I straight copy+pasted the eslint-config-react-app peerDeps from its package.json, so they're alphabetized the same way and shouldn't have any spelling mistakes.

[agilgur5]

peerDeps all look to line up to me, but I think tslib should probably be included in here too because of #719 (comment).

But somewhat problematically, it doesn't seem to have a peerDep on typescript, meaning one wouldn't get a peerDep mismatch error if an incorrect version were installed. And that means it could be easy to forget to check/upgrade tslib in tandem with typescript... Hmmm, need to think about that.

This might be unintentional, so should check upstream in tslib and perhaps file a PR.

[agilgur5]

Seems like microsoft/tslib#22 exists that goes into this. microsoft/tslib#22 (comment) seemed against using peerDeps but without an example that was difficult to understand how the use-case actually plays out (does it mean in the dependency tree or a single package?)

[agilgur5]

Since older versions of tslib seem to be forward-compatible, it seems like the decision to upgrade tslib would be independent of TS upgrade as a result, so might not make sense to ignore it then.

Added a comment in the thread upstream, but think this is good to go as is due to above. Can always add more to the list as well.

[agilgur5]

Cleaned up ~74 Greenkeeper branches associated with @typescript-eslint/eslint-plugin, @typescript-eslint/parser, eslint-plugin-flowtype, eslint-plugin-import, eslint-plugin-react, eslint-plugin-react-hooks, @types/jest, and jest-watch-typeahead.

Think nearly all the rest can be cleaned up now too (~44 left). I think they're mostly minor version upgrades (hence no PR) or devDeps or both. Has taken a while to get here, have cleaned up 100s of Greenkeeper branches 😕

[agilgur5]

Deleted another ~12 Greenkeeper branches. They were mostly patch bumps of devDeps actually, a few minors and a few prod. Remaining ones seem to be all Prettier/eslint-config-prettier/eslint-plugin-prettier deps or template version bumps in the example dir