Bump @octokit/request-error, @octokit/graphql and @octokit/rest in /e…

…xtensions/github (#240841)

Bump @octokit/request-error, @octokit/graphql and @octokit/rest

Bumps [@octokit/request-error](https://github.com/octokit/request-error.js) to 6.1.7 and updates ancestor dependencies [@octokit/request-error](https://github.com/octokit/request-error.js), [@octokit/graphql](https://github.com/octokit/graphql.js) and [@octokit/rest](https://github.com/octokit/rest.js). These dependencies need to be updated together.


Updates `@octokit/request-error` from 3.0.1 to 6.1.7
- [Release notes](https://github.com/octokit/request-error.js/releases)
- [Commits](octokit/request-error.js@v3.0.1...v6.1.7)

Updates `@octokit/graphql` from 5.0.5 to 8.2.0
- [Release notes](https://github.com/octokit/graphql.js/releases)
- [Commits](octokit/graphql.js@v5.0.5...v8.2.0)

Updates `@octokit/rest` from 19.0.4 to 21.1.0
- [Release notes](https://github.com/octokit/rest.js/releases)
- [Commits](octokit/rest.js@v19.0.4...v21.1.0)

---
updated-dependencies:
- dependency-name: "@octokit/request-error"
  dependency-type: indirect
- dependency-name: "@octokit/graphql"
  dependency-type: direct:production
- dependency-name: "@octokit/rest"
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>