Bump xunit from 2.7.1 to 2.8.0

Bumps [xunit](https://github.com/xunit/xunit) from 2.7.1 to 2.8.0.
- [Commits](xunit/xunit@2.7.1...2.8.0)

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

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

test/AstroPanda.Blazor.Toolkit.Test/AstroPanda.Blazor.Toolkit.Test.csproj

@@ -23,7 +23,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="xunit" Version="2.7.1" />
+		<PackageReference Include="xunit" Version="2.8.0" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.5.6">
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 			<PrivateAssets>all</PrivateAssets>