fix(deps): update dependency @octokit/openapi-types to v21

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@octokit/openapi-types (source)	^20.0.0 -> ^21.0.0

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Release Notes

octokit/openapi-types.ts (@​octokit/openapi-types)

### [`v21.0.0`](https://togithub.com/octokit/openapi-types.ts/releases/tag/v21.0.0) [Compare Source](https://togithub.com/octokit/openapi-types.ts/compare/v20.0.0...v21.0.0) ##### chore - empty commit to trigger a release ([#​406](https://togithub.com/octokit/openapi-types.ts/issues/406)) ([95921eb](https://togithub.com/octokit/openapi-types.ts/commit/95921eb21a19faa4015c7a6a3f81fbc6087cfa14)) ##### BREAKING CHANGES - Updates multiple endpoints to use owner + repo in place of repository_id

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[github-actions[bot]]

:tada: This PR is included in version 4.0.4 :tada:

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