feat(linter): R1S-3469 added csharp codestyle check in CI
Relates to:
https://gitlab.trgdev.com/r1-saas-prototype/catalog/catalog/-/merge_requests/50
Uses custom Docker image with preinstalled JetBrains tools:
https://gitlab.trgdev.com/infrastructure/dockers/microsoft/dotnet/linter/-/tree/6.0
Edited by Dmitrii Tolstoi