fix(deps): update dependency @octokit/webhooks-definitions to v3.57.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@octokit/webhooks-definitions	3.56.0 -> 3.57.0

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Release Notes

octokit/webhooks

### [`v3.57.0`](https://togithub.com/octokit/webhooks/releases/v3.57.0) [Compare Source](https://togithub.com/octokit/webhooks/compare/v3.56.0...v3.57.0) ##### Features - add new events pull_request#auto_merge_{enable, disable} ([#​354](https://togithub.com/octokit/webhooks/issues/354)) ([d9a72b1](https://togithub.com/octokit/webhooks/commit/d9a72b1b715bb37a264292f188bdc7031b1b5a07))

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