Bump octokit from 8.1.0 to 9.1.0 (#877)

Bumps [octokit](https://github.com/octokit/octokit.rb) from 8.1.0 to 9.1.0.
- [Release notes](https://github.com/octokit/octokit.rb/releases)
- [Changelog](https://github.com/octokit/octokit.rb/blob/main/RELEASE.md)
- [Commits](https://github.com/octokit/octokit.rb/compare/v8.1.0...v9.1.0)

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

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

Gemfile.lock

@@ -281,8 +281,7 @@ GEM
       racc (~> 1.4)
     nokogiri (1.16.5-x86_64-linux)
       racc (~> 1.4)
-    octokit (8.1.0)
-      base64
+    octokit (9.1.0)
       faraday (>= 1, < 3)
       sawyer (~> 0.9)
     pagy (8.4.4)
@@ -299,7 +298,7 @@ GEM
       railties (>= 7.0.0)
     psych (5.1.2)
       stringio
-    public_suffix (5.0.5)
+    public_suffix (5.1.0)
     puma (6.4.2)
       nio4r (~> 2.0)
     raabro (1.4.0)