Bump DotNext from 5.14.0 to 5.16.0

Bumps [DotNext](https://github.com/dotnet/dotNext) from 5.14.0 to 5.16.0.
- [Changelog](https://github.com/dotnet/dotNext/blob/master/CHANGELOG.md)
- [Commits](https://github.com/dotnet/dotNext/commits)

---
updated-dependencies:
- dependency-name: DotNext
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Directory.Packages.props

@@ -30,7 +30,7 @@
         <PackageVersion Include="CommandLineParser"
                         Version="2.9.1" />
         <PackageVersion Include="DotNext"
-                        Version="5.14.0" />
+                        Version="5.16.0" />
         <PackageVersion Include="Draco.Lsp"
                         Version="0.4.14-pre" />
         <PackageVersion Include="Iced"