chore(dev-deps): ⬆️ upgrade @octokit/core to v6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@octokit/core	5.0.1 -> 6.0.1

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Release Notes

octokit/core.js (@​octokit/core)

### [`v6.0.1`](https://togithub.com/octokit/core.js/releases/tag/v6.0.1) [Compare Source](https://togithub.com/octokit/core.js/compare/v6.0.0...v6.0.1) ##### Bug Fixes - **pkg:** add main entry point ([#​662](https://togithub.com/octokit/core.js/issues/662)) ([42148fc](https://togithub.com/octokit/core.js/commit/42148fc96ee489c5ebeb0fb30bac62e1fa3daaf7)) ### [`v6.0.0`](https://togithub.com/octokit/core.js/releases/tag/v6.0.0) [Compare Source](https://togithub.com/octokit/core.js/compare/v5.1.0...v6.0.0) ##### Features - package is now ESM ([#​661](https://togithub.com/octokit/core.js/issues/661)) ([77f8a61](https://togithub.com/octokit/core.js/commit/77f8a61107a582ccb0a0305510409a4a8cceff29)) ##### BREAKING CHANGES - package is now ESM ### [`v5.1.0`](https://togithub.com/octokit/core.js/releases/tag/v5.1.0) [Compare Source](https://togithub.com/octokit/core.js/compare/v5.0.2...v5.1.0) ##### Features - **types:** export `OctokitOptions` from `index.ts` ([#​646](https://togithub.com/octokit/core.js/issues/646)) ([d41fe5d](https://togithub.com/octokit/core.js/commit/d41fe5dbbd4a49e14ad971a8d27379e8cabbd4d7)) ### [`v5.0.2`](https://togithub.com/octokit/core.js/releases/tag/v5.0.2) [Compare Source](https://togithub.com/octokit/core.js/compare/v5.0.1...v5.0.2) ##### Bug Fixes - performance enhancements ([#​637](https://togithub.com/octokit/core.js/issues/637)/[#​638](https://togithub.com/octokit/core.js/issues/638)) ([9843e38](https://togithub.com/octokit/core.js/commit/9843e38561de7ad76b160a75f2bbf33e8b1f7b75))

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