Keep Playback Range In Section bounds can cause Actor Sequence range to be inclusive

FSequencer::UpdatePlaybackRange does not check the exclusivity of the new bounds when setting them, but UMovieScene::UpgradeTimeRanges does.

1. Create an actor sequence
2. Check the option "Keep Playback Range in Section Bounds" in the playback menu on the sequencer toolbar
3. Add a transform track
4. Change the length of the transform track section to be bounded (not infinite)
5. Observe via code breakpoint in `FSequencer::UpdatePlaybackRange` that the playback length of the sequence is inclusive of a round frame number
6. Save and close the asset
7. Reload the asset
8. Observe via code breakpoint in `UMovieScene::UpgradeTimeRanges` that the playback length of the sequence is now exclusive and has added one tick