Bump Microsoft.NET.Test.Sdk from 18.4.0 to 18.9.0

---
updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-version: 18.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -5,7 +5,7 @@
   <ItemGroup>
     <PackageVersion Include="AwesomeAssertions" Version="9.5.0" />
     <PackageVersion Include="BenchmarkDotNet" Version="0.15.8" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageVersion Include="System.Configuration.ConfigurationManager" Version="9.0.15" />
     <PackageVersion Include="Microsoft.Data.SqlClient" Version="7.0.2" />
     <PackageVersion Include="Microsoft.Extensions.Configuration" Version="10.0.11" />