build(deps): bump Newtonsoft.Json in /src/wikibus.sources.dbup

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 12.0.3 to 13.0.2.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@12.0.3...13.0.2)

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

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

src/wikibus.sources.dbup/wikibus.sources.dbup.csproj

@@ -10,7 +10,7 @@
     <ItemGroup>
         <PackageReference Include="dbup-diy-cli" Version="0.3.0-netstandard0002" />
         <PackageReference Include="dbup-diy-cli.EntityFramework" Version="0.3.0-netstandard0002" />
-        <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+        <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     </ItemGroup>
 
     <ItemGroup>