Merge pull request #1416 from cucumber/renovate/newtonsoft.json-12.x

Update dependency Newtonsoft.Json to v12

Author: aslakhellesoy

gherkin/dotnet/Gherkin.CLI/Gherkin.CLI.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Utf8Json" Version="1.3.7" />
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Gherkin\Gherkin.csproj" />