Update Newtonsoft.Json from 12.0.2 to 12.0.3 in Compatibility project as well (#1447)

Co-authored-by: Christoph Bergmeister <[email protected]>

Author: bergmeister

PSCompatibilityCollector/Microsoft.PowerShell.CrossCompatibility/Microsoft.PowerShell.CrossCompatibility.csproj

@@ -20,7 +20,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CSharp" Version="4.5.0" />
     <PackageReference Include="Microsoft.Management.Infrastructure" Version="1.0.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
   </ItemGroup>
 
 </Project>