Add support for .net 6

[maciej-bielecki]

This is a Feature Proposal

Description

• .NET Core 3.1 supports end on December 13, 2022, which is highest available for the plugin
• Currently there is lack of support for .net6 in plugin which is essential if we continue to use it
• It should be enough to add .net6 runtime in runtime.ts file in few places and register commands to build in configService.ts