.NET SDK Upgrade to 6.0.402

[qdraw]

Upgrade of .NET with newer SDK Version

• Install SDK version 6.0.402 on your development machine https://github.com/dotnet/core/blob/main/release-notes/6.0/6.0.10/6.0.10.md
• First test on linux-arm test envs before approve
• update azure runtime on test https://demostarsky.scm.azurewebsites.net/
• update docs with minimal version https://github.com/qdraw/starsky/blob/feature/auto_dotnet_sdk_version_upgrade_6.0.402/starsky/readme.md
• update changelog https://github.com/qdraw/starsky/blob/feature/auto_dotnet_sdk_version_upgrade_6.0.402/history.md

When upgrading a major version

• when upgrading to newer major release check docker

[qdraw]

coverlet-coverage/coverlet#1390