* refactor(client-search): extract and expose RankingInfo type

* feat(client-search): add personalization field to RankingInfo

* chore: migrate release process to Ship.js

This commit introduces a new release process by:

- removing the need for the scripts/release.sh bash script in favor of
  https://github.com/algolia/shipjs.
- automating the release in CircleCI

Notable changes are:

- `version` attribute added to the `package.json` file: this is a bit
  redundant with the `version` attribute available in the `lerna.json`
  but it is required by `conventional-changelog-cli`, which is used by Ship.js,
  to generate new Changelog entries, and can only identify versions based
  on the `package.json` file.
- `CHANGELOG.md` text header has been removed because
  `conventional-changelog-ci` is not aware of headers in Changelog
  files.
- `GITHUB_TOKEN` environment variable is now added to the CircleCI
  configuration. It grants CircleCI with the appropriate rights to run
  `shipjs trigger`, effectively publishing to NPM. The value is set to
  the Github account `algolia-api-client-bot` which can be retrieved
  from our Vault cluster, like other credentials.
- `CONTRIBUTING.md` file updated to reflect the updated release process.

* chore: update circleci to run shipjs trigger only on master branch

* chore: remove .npmrc file

* chore: remove unnecessary step in circleci

* chore: remove empty filters

Co-authored-by: eunjae-lee <karis612@gmail.com>
Co-authored-by: Eunjae Lee <eunjae.lee@algolia.com>

* chore(TypeScript): avoid ts-ignore

- addMethods with `as`
- updateApiKey with type guard
- browseRules & browseSynonyms with `as any` (the key exists, but isn't supposed to be shown to the user, thus isn't in the type

* any & use returned type directly

for some reason if you do let x = something, you can't change the type anymore in a reassignment, except if you return directly, since that makes a new type

* fix typo

* fix(node): allow passing requestOptions

* lint

* change to requesterOptions

* add test

* too new syntax

* chore: release v4.6.0

* Update CHANGELOG.md

* fix release