Update a few openshot ports:
- audio/libopenshot-audio: Update to 0.2.0.29
- multimedia/libopenshot: Update to 0.2.5.517
- multimedia/openshot: update to 2.5.1.732
PR: 253643, 253645, 253646
Submitted by: Tatsuki Makino <tatsuki_makino AT hotmail DOT com> (maintainer)