reverting Newtonsoft.Json version from 13.0.3 to 13.0.2

Author: hamzamahmood

APIMatic.Core/APIMatic.Core.csproj

@@ -37,7 +37,7 @@
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
         <PackageReference Include="System.Collections.Immutable" Version="7.0.0" />
-        <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+        <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     </ItemGroup>
     <ItemGroup>
         <InternalsVisibleTo Include="APIMatic.Core.Test" />