Don't disconnect ActiveRecord connections on before_fork

[dsandstrom]

I ran into an issue after updating puma (3.11.4), capistrano (3.10.2), and capistrano3-puma (3.1.1). I get NameError: uninitialized constant ActiveRecord when starting the app. I commented out the before_fork block from the production puma config and was then able to start the app. I believe that block is not needed anymore from this issue puma/puma#1528. I don't really see what they are talking about in the readme, but I did notice that they don't show the ActiveRecord disconnection in their examples.

#170

[github-actions]

Stale issue message