Add `"types"` entries to the `"exports"` property of package.json, to allow consumption from Typescript with the new `Node16` module resolution strategy

[Duncan3142]

Is your feature request related to a problem? Please describe.

I'm unable to consume "ava" from Typescript 4.7, when module resolution is set to Node16

Describe the solution you'd like

Add "types" entries to the "exports" property of package.json

Describe alternatives you've considered

None

Additional context

The following should suffice

"exports": {
  ".": {
    "types": "./index.d.ts"
    "import": "./entrypoints/main.mjs",
    "require": "./entrypoints/main.cjs"
  },
  "./eslint-plugin-helper": "./entrypoints/eslint-plugin-helper.cjs",
  "./plugin": {
    "import": "./entrypoints/plugin.mjs",
    "require": "./entrypoints/plugin.cjs"
  }
},

[novemberborn]

This is an issue in AVA itself, keep an eye on avajs/ava#3024.

Will close since the work is tracked in a different repository.