Unable to connect to SQL Server service

I have simple test repo https://github.com/umbarov/dotnet-sqlserver-gh-actions that uses c# and sql server. I am testing connection to the sql server, but I get an error. Am I missing something?

Suppose that there is a bug in EF Core or Microsoft.Data.SqlClient.SqlConnection. Reported as issue https://github.com/dotnet/efcore/issues/23582