Log Message:
www/ruby-rack2: update to 2.2.8

2.2.7 (2023-03-13)

* Correct the year number in the changelog (#2015, @kimulab)
* Support underscore in host names for Rack 2.2 (Fixes #2070) (#2015,
  @jeremyevans)

2.2.8 (2023-07-31)

* Regenerate SPEC (#2102, @skipkayhil)
* Limit file extension length of multipart tempfiles (#2015, @dentarg)
* Fix "undefined method DelegateClass for Rack::Session::Cookie:Class"
  (#2092, @onigra @dchandekstark)