Bump Newtonsoft.Json from 13.0.3 to 13.0.4

---
updated-dependencies:
- dependency-name: Newtonsoft.Json
  dependency-version: 13.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -46,7 +46,7 @@
     <PackageVersion Include="ModelContextProtocol.AspNetCore" Version="0.3.0-preview.4" />
     <PackageVersion Include="Moq" Version="4.20.72" />
     <PackageVersion Include="System.CommandLine" Version="2.0.0-beta6.25358.103" />
-    <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
+    <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
     <PackageVersion Include="Octokit" Version="14.0.0" />
     <PackageVersion Include="DotnetSitemapGenerator" Version="1.0.4" />
     <PackageVersion Include="xunit" Version="2.9.3" />