feat(presets): Add monorepo NSwag (#15647)

* feat(presets): Add monorepo NSwag

> `Detected package downgrade: NSwag.MSBuild from 13.16.0 to 13.15.10.`

Stops code from breaking on package upgrade.

Please see: https://github.com/RicoSuter/NSwag under the section 'nuget packages'. for a list of packages.

* Alphanumeric sort

lib/config/presets/internal/monorepo.ts

@@ -161,6 +161,7 @@ const repoGroups = {
   nivo: 'https://github.com/plouc/nivo',
   ngrx: 'https://github.com/ngrx/',
   nrwl: 'https://github.com/nrwl/',
+  nswag: 'https://github.com/RicoSuter/NSwag',
   nuxtjs: 'https://github.com/nuxt/nuxt.js',
   orleans: 'https://github.com/dotnet/orleans',
   feign: 'https://github.com/OpenFeign/feign',