Bump Newtonsoft.Json in /src/ProjectFileTools.NuGetSearch

Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from 9.0.1 to 13.0.1.
- [Release notes](https://github.com/JamesNK/Newtonsoft.Json/releases)
- [Commits](JamesNK/Newtonsoft.Json@9.0.1...13.0.1)

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

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

Author: dependabot[bot]

src/ProjectFileTools.NuGetSearch/ProjectFileTools.NuGetSearch.csproj

@@ -16,10 +16,10 @@
   <ItemGroup Condition="'$(TargetFramework)' == 'net46'">
     <Reference Include="System.ComponentModel.Composition" />
     <Reference Include="System.Net.Http" />
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)' != 'net46'">
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
   </ItemGroup>
   <ItemGroup>