package/libostree: bump to version 2019.4
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
[Bernd: bump to version 2019.4]
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>