Bump the dev-dependencies group with 2 updates

Bumps Microsoft.NET.Test.Sdk from 18.8.1 to 18.9.0
Bumps xunit.runner.visualstudio from 3.1.5 to 4.0.0

---
updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-version: 18.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: xunit.runner.visualstudio
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: dev-dependencies
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -37,7 +37,7 @@
     <PackageVersion Include="Microsoft.Extensions.Logging" Version="10.0.10" />
     <PackageVersion Include="Microsoft.Extensions.Options" Version="10.0.10" />
     <PackageVersion Include="Microsoft.JSInterop" Version="10.0.10" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageVersion Include="MimeMapping" Version="4.0.0" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
     <PackageVersion Include="NHibernate" Version="5.7.0" />
@@ -50,7 +50,7 @@
     <PackageVersion Include="System.IO.Ports" Version="10.0.10" />
     <PackageVersion Include="System.Reactive" Version="7.0.0" />
     <PackageVersion Include="xunit" Version="2.9.3" />
-    <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />
+    <PackageVersion Include="xunit.runner.visualstudio" Version="4.0.0" />
     <PackageVersion Include="XunitXml.TestLogger" Version="8.0.0" />
     <PackageVersion Include="YamlDotNet" Version="18.1.0" />
   </ItemGroup>