gst1-rtsp-server: bump to 1.12.3

Signed-off-by: Adam Duskett <Adamduskett@outlook.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/gstreamer1/gst1-rtsp-server/gst1-rtsp-server.hash

@@ -1,2 +1,2 @@
-From https://gstreamer.freedesktop.org/src/gst-rtsp-server/gst-rtsp-server-1.12.2.tar.xz.sha256sum
-sha256 d8ba9264e8ae6e440293328e759e40456f161aa66077b3143dd07581136190b3 gst-rtsp-server-1.12.2.tar.xz
+From https://gstreamer.freedesktop.org/src/gst-rtsp-server/gst-rtsp-server-1.12.3.tar.xz.sha256sum
+sha256 67255971bb16029a01de66b9f9687f20d8dbf3d3bd75feb48605d0723a7c74ec gst-rtsp-server-1.12.3.tar.xz

package/gstreamer1/gst1-rtsp-server/gst1-rtsp-server.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-GST1_RTSP_SERVER_VERSION = 1.12.2
+GST1_RTSP_SERVER_VERSION = 1.12.3
 GST1_RTSP_SERVER_SOURCE = gst-rtsp-server-$(GST1_RTSP_SERVER_VERSION).tar.xz
 GST1_RTSP_SERVER_SITE = http://gstreamer.freedesktop.org/src/gst-rtsp-server
 GST1_RTSP_SERVER_LICENSE = LGPL-2.0+