Log Message:
www/ruby-rack: update to 3.0.6.1

3.0.5 (2023-03-12)

* test-external.yaml - use ruby/setup-ruby-pkgs (#2048)
* Split form/query parsing into two steps (#2038)

3.0.6 (2023-03-13)

* Add QueryParser#missing_value for handling missing values + tests.
  (#2052)

3.0.6.1 (2023-03-14)

* Avoid ReDoS problem: Split headers on commas, then strip the strings in
  order to avoid ReDoS issues.

  [CVE-2023-27539]