[MacPorts] #44056: grass: upgrade to 7.0.0

[MacPorts]

#44056: grass: upgrade to 7.0.0
----------------------+--------------------------------
  Reporter:  mojca@…  |      Owner:  macports-tickets@…
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  grass    |
----------------------+--------------------------------

Comment (by petr@…):

 The `mysql5` variant needs to be changed to comply with multiple mysql
 variants, see for example #43431.

-- 
Ticket URL: <https://trac.macports.org/ticket/44056#comment:13>
MacPorts <https://www.macports.org/>
Ports system for OS X