chore(deps): bump @octokit/rest from 16.28.7 to 18.5.3

Bumps [@octokit/rest](https://github.com/octokit/rest.js) from 16.28.7 to 18.5.3.
- [Release notes](https://github.com/octokit/rest.js/releases)
- [Commits](octokit/rest.js@v16.28.7...v18.5.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]