chore(deps): update dependency microsoft.testing.extensions.codecoverage to 18.12.0

Author: renovate[bot]

src/Directory.Packages.props

@@ -90,7 +90,7 @@
     <PackageVersion Include="TUnit" Version="$(TUnitVersion)"/>
     <PackageVersion Include="TUnit.Core" Version="$(TUnitVersion)"/>
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.10.1"/>
-    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.11.2"/>
+    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.12.0"/>
     <PackageVersion Include="Microsoft.Testing.Platform.MSBuild" Version="2.4.1"/>
     <PackageVersion Include="Microsoft.Reactive.Testing" Version="7.0.0"/>
     <PackageVersion Include="System.Reactive" Version="7.0.0"/>