Update dependencies from https://github.com/dotnet/efcore build 20200715.2 (#23970)

Microsoft.EntityFrameworkCore.Tools , Microsoft.EntityFrameworkCore.SqlServer , dotnet-ef , Microsoft.EntityFrameworkCore , Microsoft.EntityFrameworkCore.Relational , Microsoft.EntityFrameworkCore.Sqlite , Microsoft.EntityFrameworkCore.InMemory
 From Version 5.0.0-preview.8.20360.8 -> To Version 5.0.0-preview.8.20365.2

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>