net-mgmt/unifi6: Update to 6.1.71
- Update to 6.1.71
- Changelog: https://community.ui.com/releases/0cffd3ed-7429-4529-9a20-9fead78ebf66
Differential Revision: https://reviews.freebsd.org/D29444
(cherry picked from commit dc5b4ddd54e8ad42c270415eeadcd0e25b9b6d50)