package/libglib2: bump to version 2.56.4
Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit b08d4a9bfb5e597c3a601496517801999fec3dff)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>