fix(deps): update dependency @octokit/webhooks-definitions to v3.53.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@octokit/webhooks-definitions	3.53.0 -> 3.53.3

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Release Notes

octokit/webhooks

### [`v3.53.3`](https://togithub.com/octokit/webhooks/releases/v3.53.3) [Compare Source](https://togithub.com/octokit/webhooks/compare/v3.53.2...v3.53.3) ##### Bug Fixes - update schema for `milestone` property on `simple-pull-request` ([#​341](https://togithub.com/octokit/webhooks/issues/341)) ([1bd674a](https://togithub.com/octokit/webhooks/commit/1bd674a7b051e2e715ba5d264a84c4ffb1001fe4)) ### [`v3.53.2`](https://togithub.com/octokit/webhooks/releases/v3.53.2) [Compare Source](https://togithub.com/octokit/webhooks/compare/v3.53.1...v3.53.2) ##### Bug Fixes - mark `milestone` property as possibly `null` on `issue_comment` ([#​338](https://togithub.com/octokit/webhooks/issues/338)) ([689749c](https://togithub.com/octokit/webhooks/commit/689749c7870ab7131897c9805c506997276e2774)) - reference `Committer` interface in more places ([#​337](https://togithub.com/octokit/webhooks/issues/337)) ([ddd8ae8](https://togithub.com/octokit/webhooks/commit/ddd8ae838484a759e4543235245f4678963922b7)) - remove stray properties from `pull_request` schema ([#​340](https://togithub.com/octokit/webhooks/issues/340)) ([03f6ff4](https://togithub.com/octokit/webhooks/commit/03f6ff485ab1bd9721774578e26a237d15bb36d1)) ### [`v3.53.1`](https://togithub.com/octokit/webhooks/releases/v3.53.1) [Compare Source](https://togithub.com/octokit/webhooks/compare/v3.53.0...v3.53.1) ##### Bug Fixes - remove `format` from `repository#homepage` property ([#​339](https://togithub.com/octokit/webhooks/issues/339)) ([55a0ee4](https://togithub.com/octokit/webhooks/commit/55a0ee48d50ee5a50c6b664c883f984e7719f91c))

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