Log Message:
www/ruby-actioncable70: update to 7.0.4

* The Redis adapter is now compatible with redis-rb 5.0

  Compatibility with redis-rb 3.x was dropped.

  Jean Boussier

* The Action Cable server is now mounted with anchor: true.

  This means that routes that also start with /cable will no longer clash
  with Action Cable.

  Alex Ghiculescu