Update dependency Newtonsoft.Json to v13.0.3

Author: renovate[bot]

Util/NHibernate.Caches.Util.JsonSerializer/NHibernate.Caches.Util.JsonSerializer.csproj

@@ -23,7 +23,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="all" />
-    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
   </ItemGroup>
   <ItemGroup>
     <Content Include="../../readme.md">