package/cups-filters: bump to version 1.28.15

Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/cups-filters/cups-filters.hash

@@ -1,3 +1,3 @@
 # Locally computed:
-sha256  3265017d2369e1130e732090165d6b4e3c0838d7ca9aa60978b087bee12247ff  cups-filters-1.28.12.tar.gz
+sha256  614e053404bb833f78e1edf077f7759d27e475a212eb9a3bd3eac2cfec8bb6c1  cups-filters-1.28.15.tar.gz
 sha256  38192ffdaca98b718f78b2d4abc38bb087f0bbcc9a16d212c98b903b985f900f  COPYING

package/cups-filters/cups-filters.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-CUPS_FILTERS_VERSION = 1.28.12
+CUPS_FILTERS_VERSION = 1.28.15
 CUPS_FILTERS_SITE = http://openprinting.org/download/cups-filters
 CUPS_FILTERS_LICENSE = GPL-2.0, GPL-2.0+, GPL-3.0, GPL-3.0+, LGPL-2, LGPL-2.1+, MIT, BSD-4-Clause
 CUPS_FILTERS_LICENSE_FILES = COPYING