Update Microsoft.Extensions.DiagnosticAdapter version to 2.1.0 (when targeting the full .NET framework)

[drauch]

We face the same issue as described in #721, however, we don't target .NET Core, we're still targeting the full .NET framework (4.7.2).

We reference Microsoft.ApplicationInsights/2.9.1 and Microsoft.ApplicationInsights.AspNetCore/2.6.1 (both seem to be the newest versions). If you look at the latter in project.assets.json it still references "Microsoft.Extensions.DiagnosticAdapter": "1.1.0".

Could you fix this problem when targeting the full .NET framework as well?

[cijothomas]

@drauch Thanks for reporting. The project has a target for net46, so we can modify it also to use updated Microsoft.Extensions.DiagnosticAdapter.

[lmolkova]

Fixed: dependency is removed in #852