chore(deps): update dependency microsoft.testplatform.testhost to 18.4.0 (#1196)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Directory.Packages.props

@@ -17,7 +17,7 @@
     <PackageVersion Include="Microsoft.Extensions.DependencyModel" Version="10.0.5" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.5" />
     <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.5.2" />
-    <PackageVersion Include="Microsoft.TestPlatform.TestHost" Version="18.3.0" />
+    <PackageVersion Include="Microsoft.TestPlatform.TestHost" Version="18.4.0" />
     <PackageVersion Include="MSTest.TestAdapter" Version="4.1.0" />
     <PackageVersion Include="MSTest.TestFramework" Version="4.1.0" />
     <PackageVersion Include="NUnit" Version="4.5.1" />