[DRE-maint] rails update

[Adam D. Barratt]

On Mon, 2020-07-06 at 13:25 +0530, Pirate Praveen wrote:
> Just like gitlab was removed from stable, rails can also get removed
> from stable if no one steps up to maintain it. I'm happy with rails
> in just unstable for my use cases. A package can be supported only
> when people are willing to support it.

As a practical point, rails has over 100 reverse dependencies in stable
and thus _cannot_ be removed. It could potentially not be included in a
future release, but that would affect a lot of packages and need
coordinating well in advance of the freeze.

Regards,

Adam