Update dependencies

Bump xunit from 2.6.0 to 2.6.1

Bumps [xunit](https://github.com/xunit/xunit) from 2.6.0 to 2.6.1.
- [Commits](xunit/xunit@2.6.0...2.6.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

Bump Microsoft.NET.Test.Sdk from 17.7.2 to 17.8.0

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 17.7.2 to 17.8.0.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Changelog](https://github.com/microsoft/vstest/blob/main/docs/releases.md)
- [Commits](microsoft/vstest@v17.7.2...v17.8.0)

---
updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

test/GitHubLabelSync.Tests.csproj

@@ -5,9 +5,9 @@
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
 	<ItemGroup>
-		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2"/>
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0"/>
 		<PackageReference Include="NSubstitute" Version="5.1.0"/>
-		<PackageReference Include="xunit" Version="2.6.0"/>
+		<PackageReference Include="xunit" Version="2.6.1"/>
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.5.3"/>
 		<PackageReference Include="coverlet.collector" Version="6.0.0" PrivateAssets="all"/>
 		<ProjectReference Include="../src/GitHubLabelSync.csproj"/>