Bump Octokit from 9.1.2 to 12.0.0 in /src

Bumps [Octokit](https://github.com/octokit/octokit.net) from 9.1.2 to 12.0.0.
- [Release notes](https://github.com/octokit/octokit.net/releases)
- [Changelog](https://github.com/octokit/octokit.net/blob/main/docs/releases.md)
- [Commits](octokit/octokit.net@v9.1.2...v12.0.0)

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

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

Author: dependabot[bot]

src/GitHubConnector.csproj

@@ -31,7 +31,7 @@
     <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="8.0.0" />
     <PackageReference Include="Microsoft.Graph" Version="5.55.0" />
-    <PackageReference Include="Octokit" Version="9.1.2" />
+    <PackageReference Include="Octokit" Version="12.0.0" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.556">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>