package/libass: bump version to 0.13.1

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libass/libass.hash

@@ -1,2 +1,2 @@
 # Locally computed
-sha256	e0071a3b2e95411c8d474014678368e3f0b852f7d663e0564b344e7335eb0671	libass-0.13.0.tar.xz
+sha256	4aa36b1876a61cab46fc9284fee84224b9e2840fe7b3e63d96a8d32574343fe7	libass-0.13.1.tar.xz

package/libass/libass.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBASS_VERSION = 0.13.0
+LIBASS_VERSION = 0.13.1
 LIBASS_SOURCE = libass-$(LIBASS_VERSION).tar.xz
 # Do not use the github helper here, the generated tarball is *NOT*
 # the same as the one uploaded by upstream for the release.