chore(deps): bump MorganStanley.Fdc3.NewtonsoftJson (#388)

Bumps [MorganStanley.Fdc3.NewtonsoftJson](https://github.com/morganstanley/fdc3-dotnet) from 2.0.0-alpha.6 to 2.0.0-alpha.7.
- [Release notes](https://github.com/morganstanley/fdc3-dotnet/releases)
- [Commits](finos/fdc3-dotnet@v2.0.0-alpha.6...v2.0.0-alpha.7)

---
updated-dependencies:
- dependency-name: MorganStanley.Fdc3.NewtonsoftJson
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Directory.Packages.props

@@ -31,7 +31,7 @@
     <PackageVersion Include="Moq.Contrib.HttpClient" Version="1.4.0" />
     <PackageVersion Include="Moq" Version="4.20.69" />
     <PackageVersion Include="MorganStanley.Fdc3.AppDirectory" Version="2.0.0-alpha.7" />
-    <PackageVersion Include="MorganStanley.Fdc3.NewtonsoftJson" Version="2.0.0-alpha.6" />
+    <PackageVersion Include="MorganStanley.Fdc3.NewtonsoftJson" Version="2.0.0-alpha.7" />
     <PackageVersion Include="MorganStanley.Fdc3" Version="2.0.0-alpha.6" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageVersion Include="Nito.AsyncEx.Coordination" Version="5.1.2" />