chore(deps): update microsoft.testing to 18.8.0

Author: renovate-bot

Directory.Packages.props

@@ -44,7 +44,7 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
     <PackageVersion Include="Microsoft.Playwright" Version="1.60.0" />
     <PackageVersion Include="Microsoft.TemplateEngine.Authoring.TemplateVerifier" Version="10.0.300" />
-    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.7.0" />
+    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.8.0" />
     <PackageVersion Include="Microsoft.Testing.Extensions.CrashDump" Version="2.2.3" />
     <PackageVersion Include="Microsoft.Testing.Extensions.HangDump" Version="2.2.3" />
     <PackageVersion Include="Microsoft.Testing.Extensions.Telemetry" Version="2.2.3" />