Bump Newtonsoft.Json from 8.0.2 to 13.0.2 in /Iyzipay.Samples (#125)

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 8.0.2 to 13.0.2.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@8.0.2...13.0.2)

---
updated-dependencies:
- dependency-name: Newtonsoft.Json
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Iyzipay.Samples/Iyzipay.Samples.csproj

@@ -25,15 +25,15 @@
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Xml" />
 
-    <PackageReference Include="Newtonsoft.Json" Version="8.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp2.0'">
-    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp1.1'">
-    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     <PackageReference Include="System.Diagnostics.TraceSource" Version="4.3.0" />
     <PackageReference Include="System.Diagnostics.TextWriterTraceListener" Version="4.3.0" />
   </ItemGroup>