package/asterisk: security update to 20.9.3

See here for the Changelog:
https://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLog-20.9.3.md

Fixes CVE-2024-42491.

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/asterisk/asterisk.hash

@@ -1,5 +1,5 @@
 # Locally computed
-sha256  6bc4d982a238397bf6b3bfa523f63a75a2d9b19edd6f33f79264f2385d05bc42  asterisk-20.9.2.tar.gz
+sha256  a15099a5c776045e96b0da2534606c8dbd13bc1ffcbe325f7cfd74dc1d29decb  asterisk-20.9.3.tar.gz
 
 # sha1 from: http://downloads.asterisk.org/pub/telephony/sounds/releases
 # sha256 locally computed

package/asterisk/asterisk.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-ASTERISK_VERSION = 20.9.2
+ASTERISK_VERSION = 20.9.3
 # Use the github mirror: it's an official mirror maintained by Digium, and
 # provides tarballs, which the main Asterisk git tree (behind Gerrit) does not.
 ASTERISK_SITE = $(call github,asterisk,asterisk,$(ASTERISK_VERSION))