Bump @discordjs/rest from 1.6.0 to 2.2.0 (#462)

Bumps [@discordjs/rest](https://github.com/discordjs/discord.js/tree/HEAD/packages/rest) from 1.6.0 to 2.2.0.
- [Release notes](https://github.com/discordjs/discord.js/releases)
- [Changelog](https://github.com/discordjs/discord.js/blob/main/packages/rest/CHANGELOG.md)
- [Commits](https://github.com/discordjs/discord.js/commits/@discordjs/[email protected]/packages/rest)

---
updated-dependencies:
- dependency-name: "@discordjs/rest"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>