Set System.Text.Json version explicitly (#1462)

* Add APIScan steps to the ES1 release pipeline

* Add Directory.Packages.props

* Add System.Text.Json package reference to CLI and Common projects

Author: kotlarmilos

src/Microsoft.DotNet.XHarness.CLI/Microsoft.DotNet.XHarness.CLI.csproj

@@ -39,6 +39,7 @@
     <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="6.0.0" />
     <PackageReference Include="Mono.Options" Version="6.12.0.148" />
     <PackageReference Include="Selenium.WebDriver" Version="4.0.0-alpha05" />
+    <PackageReference Include="System.Text.Json" Version="8.0.5" />
 
     <!-- Pin transitive package versions -->
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />

src/Microsoft.DotNet.XHarness.Common/Microsoft.DotNet.XHarness.Common.csproj

@@ -17,6 +17,7 @@
     <PackageReference Include="Microsoft.Extensions.Logging" Version="6.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="6.0.0" />
     <PackageReference Include="Mono.Options" Version="6.12.0.148" />
+    <PackageReference Include="System.Text.Json" Version="8.0.5" />
   </ItemGroup>
 
   <ItemGroup>