- Update all ports that depends of py-sphinx. [0]
- Add conditional RUN_DEPENDS. [1]
- Add TEST_DEPENDS. [1]

PR:		ports/221891 [0] and ports/225136 [1]
Submitted by:	sunpoet [1]
Approved by:	antoine (portmgr)
Exprun by:	antoine (several rounds)
Sponsored by:	iXsystems, Inc.