[MacPorts] #55512: py-cheetah: Update to version 3

[MacPorts]

#55512: py-cheetah: Update to version 3
-------------------------+-----------------
  Reporter:  mf2k        |      Owner:
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  py-cheetah  |
-------------------------+-----------------

Comment (by michaelld):

 No idea. Do you know how backward compatible 3 -> 2 is? Maybe I'll give it
 a go & see what comes of it.

 GR devs are working on moving away from cheetah, but that's still a bit
 down the road since cheetah is used extensively.

--
Ticket URL: <https://trac.macports.org/ticket/55512#comment:4>
MacPorts <https://www.macports.org/>
Ports system for macOS