Bump octokit from 8.0.0 to 8.1.0

Bumps [octokit](https://github.com/octokit/octokit.rb) from 8.0.0 to 8.1.0.
- [Release notes](https://github.com/octokit/octokit.rb/releases)
- [Changelog](https://github.com/octokit/octokit.rb/blob/main/RELEASE.md)
- [Commits](octokit/octokit.rb@v8.0.0...v8.1.0)

---
updated-dependencies:
- dependency-name: octokit
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -266,7 +266,8 @@ GEM
       actionview
       octicons (= 19.8.0)
       railties
-    octokit (8.0.0)
+    octokit (8.1.0)
+      base64
       faraday (>= 1, < 3)
       sawyer (~> 0.9)
     omniauth (2.1.2)