Log Message:
www/ruby-rack-protection: update to 3.1.0

pkgsrc change:

* change rack-protection's dependency to www/ruby-rack2 instead of
  www/ruby-rack.

3.1.0 (2023-08-07)

* New: Add sass support via sass-embedded #1911 by なつき
* New: Add start and stop callbacks #1913 by Jevin Sew
* New: Warn on dropping sessions #1900 by Jonathan del Strother
* New: Make Puma the default server #1924 by Patrik Ragnarsson
* Fix: Remove use of Tilt::Cache #1922 by Jeremy Evans (allows use of Tilt
  2.2.0 without deprecation warning)
* Fix: rack-protection: specify rack version requirement #1932 by Patrik
  Ragnarsson