‫شروع به کار بر روی NET 5.0.

Various .NET Core repos have switched their master branches to "5.0", and will use 3.x branches for 3.0 and 3.1 projects. This is very similar to how we approached 2.x and 3.0 projects. As context, master branches produced 3.0 builds for the entire period of the 2.2 project.