Bump Microsoft.NET.Test.Sdk from 17.13.0 to 18.4.0

---
updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-version: 18.4.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -10,7 +10,7 @@
     <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly" Version="10.0.5" />
     <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="10.0.5" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.5" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />
     <PackageVersion Include="Microsoft.Office.Interop.Word" Version="15.0.4797.1004" />
     <PackageVersion Include="Nerdbank.GitVersioning" Version="3.7.115" />
     <PackageVersion Include="PDFtoImage" Version="5.2.1" />