Update dependencies

Bump xunit from 2.5.2 to 2.5.3

Bumps [xunit](https://github.com/xunit/xunit) from 2.5.2 to 2.5.3.
- [Commits](https://github.com/xunit/xunit/commits)

---
updated-dependencies:
- dependency-name: xunit
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Bump Octokit from 8.1.1 to 9.0.0

Bumps [Octokit](https://github.com/octokit/octokit.net) from 8.1.1 to 9.0.0.
- [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@v8.1.1...v9.0.0)

---
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/GitHubLabelSync.csproj

@@ -21,7 +21,7 @@
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
 	<ItemGroup>
-		<PackageReference Include="Octokit" Version="8.1.1"/>
+		<PackageReference Include="Octokit" Version="9.0.0"/>
 		<PackageReference Include="Spectre.Console.Cli" Version="0.47.0"/>
 		<None Include="../README.md" CopyToOutputDirectory="PreserveNewest" Pack="true" PackagePath="."/>
 	</ItemGroup>

test/GitHubLabelSync.Tests.csproj

@@ -7,7 +7,7 @@
 	<ItemGroup>
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2"/>
 		<PackageReference Include="NSubstitute" Version="5.1.0"/>
-		<PackageReference Include="xunit" Version="2.5.2"/>
+		<PackageReference Include="xunit" Version="2.5.3"/>
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.5.3"/>
 		<PackageReference Include="coverlet.collector" Version="6.0.0" PrivateAssets="all"/>
 		<ProjectReference Include="../src/GitHubLabelSync.csproj"/>