Bump octokit from 4.8.0 to 4.13.0 in /docs
Bump octokit from 4.8.0 to 4.13.0 in /docs

Bumps [octokit](https://github.com/octokit/octokit.rb) from 4.8.0 to 4.13.0.
- [Release notes](https://github.com/octokit/octokit.rb/releases)
- [Changelog](https://github.com/octokit/octokit.rb/blob/master/RELEASE.md)
- [Commits](https://github.com/octokit/octokit.rb/compare/v4.8.0...v4.13.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
Alexey1Gavrilov/dropwizard,dropwizard/dropwizard,jplock/dropwizard,phambryan/dropwizard,phambryan/dropwizard,pkwarren/dropwizard,mosoft521/dropwizard,mosoft521/dropwizard,dropwizard/dropwizard,micsta/dropwizard,pkwarren/dropwizard,Alexey1Gavrilov/dropwizard,Alexey1Gavrilov/dropwizard,phambryan/dropwizard,dropwizard/dropwizard,micsta/dropwizard,mosoft521/dropwizard,micsta/dropwizard,jplock/dropwizard,jplock/dropwizard,pkwarren/dropwizard