Bump Microsoft.Testing.Extensions.CodeCoverage and System.Text.Json (#1930)

Author: dependabot[bot]

Directory.Packages.props

@@ -14,7 +14,7 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageVersion Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
-    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="17.13.1" />
+    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="17.14.2" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageVersion Include="NSubstitute" Version="5.3.0" />
     <PackageVersion Include="NuGet.Common" Version="6.13.2" />