Package Dependencies: Bump the xunit group with 2 updates

Bumps the xunit group with 2 updates: [xunit](https://github.com/xunit/xunit) and [xunit.runner.visualstudio](https://github.com/xunit/visualstudio.xunit).


Updates `xunit` from 2.6.6 to 2.9.0
- [Commits](xunit/xunit@2.6.6...2.9.0)

Updates `xunit.runner.visualstudio` from 2.5.6 to 2.8.2
- [Release notes](https://github.com/xunit/visualstudio.xunit/releases)
- [Commits](xunit/visualstudio.xunit@2.5.6...2.8.2)

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

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

QueryKit.IntegrationTests/QueryKit.IntegrationTests.csproj

@@ -20,8 +20,8 @@
         <PackageReference Include="Testcontainers" Version="3.9.0" />
         <PackageReference Include="Testcontainers.PostgreSql" Version="3.9.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-        <PackageReference Include="xunit" Version="2.6.6" />
-        <PackageReference Include="xunit.runner.visualstudio" Version="2.5.6">
+        <PackageReference Include="xunit" Version="2.9.0" />
+        <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>

QueryKit.UnitTests/QueryKit.UnitTests.csproj

@@ -12,8 +12,8 @@
         <PackageReference Include="AutoBogusLifesupport" Version="2.14.0" />
         <PackageReference Include="FluentAssertions" Version="6.12.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-        <PackageReference Include="xunit" Version="2.6.6" />
-        <PackageReference Include="xunit.runner.visualstudio" Version="2.5.6">
+        <PackageReference Include="xunit" Version="2.9.0" />
+        <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>