package/libbluray: bump to version 1.3.1

https://code.videolan.org/videolan/libbluray/-/blob/1.3.1/ChangeLog



Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>