Update dependency Microsoft.Testing.Extensions.CodeCoverage to 18.3.1

Author: renovate[bot]

Directory.Packages.props

@@ -13,7 +13,7 @@
     <PackageVersion Include="Moq" Version="4.20.72" />
   </ItemGroup>
   <ItemGroup Label="Library.Template">
-    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.1.0" />
+    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.3.1" />
     <PackageVersion Include="Microsoft.Testing.Extensions.CrashDump" Version="$(MicrosoftTestingPlatformVersion)" />
     <PackageVersion Include="Microsoft.Testing.Extensions.HangDump" Version="$(MicrosoftTestingPlatformVersion)" />
     <PackageVersion Include="Microsoft.Testing.Extensions.TrxReport" Version="$(MicrosoftTestingPlatformVersion)" />