Add @octokit/core as peerDependency

[gr2m]

This is a follow up issue to octokit/plugin-paginate-rest.js#124 (comment)

We need to add @octokit/core as a peerDependency to address a problem with yarn 2. It is something I planned to do anyway, but wanted to figure out automated testing to assure compatibility of the plugins with the latest @octokit/core.

I only want to define compatibility with the lowest version, in this case v3. Compare pull request https://github.com/octokit/plugin-paginate-rest.js/pull/130/files.

I would appreciate help, this is a great issue for a first-time contributor

[github-actions]

🎉 This issue has been resolved in version 9.0.1 🎉

The release is available on:

• GitHub release
• npm package (@latest dist-tag)

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