multimedia/pipewire: correct OSVERSION check to use proper ncurses (+)

Since 1400035 FreeBSD have imported into base libtinfo split from ncurses
which required to build pw-top utility.

Force ncurses:port to proper build on systems < 1400035
Bump PORTREVISION to force rebuild

Approved by: arrowd via IRC
Largest pointy hat available: arrowd :)
Sponsored by: Netzkommune GmbH