Update dependency Microsoft.NET.Test.Sdk to 18.4.0

Author: renovate[bot]

UnitTests/UnitTests.csproj

@@ -20,7 +20,7 @@
     <PackageReference Include="FluentAssertions" Version="7.2.2" />
     <PackageReference Include="MartinCostello.Logging.XUnit" Version="0.7.1" />
     <PackageReference Include="Microsoft.AspNetCore.TestHost" Version="8.0.25" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="Moq.AutoMock" Version="4.0.2" />
     <PackageReference Include="xunit" Version="2.9.3" />