Update dependency Microsoft.CodeCoverage to v18

Author: renovate[bot]

Directory.Packages.props

@@ -48,7 +48,7 @@
         <PackageVersion Include="bunit" Version="1.40.0" />
         <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="5.3.0" />
         <PackageVersion Include="Bogus" Version="35.6.5" />
-        <PackageVersion Include="Microsoft.CodeCoverage" Version="17.13.0" />
+        <PackageVersion Include="Microsoft.CodeCoverage" Version="18.4.0" />
 
         <PackageVersion Include="Verify.AngleSharp" Version="4.5.0" />
         <PackageVersion Include="Verify.ImageMagick" Version="3.7.0" />