asterisk: update to 20.6.0

package/asterisk/Makefile

@@ -4,9 +4,9 @@
 include $(ADK_TOPDIR)/rules.mk
 
 PKG_NAME:=		asterisk
-PKG_VERSION:=		20.5.2
+PKG_VERSION:=		20.6.0
 PKG_RELEASE:=		1
-PKG_HASH:=		8f68e1789dfb8aa04b0eba87ea1d599a62e088ddd20926afc997f36b455e1859
+PKG_HASH:=		d70109e9b4c52fba6d0080b20cadc0aaee4060a0ad28bff4e376bf8b393e9400
 PKG_DESCR:=		open source pbx
 PKG_SECTION:=		net/voip
 PKG_DEPENDS:=		libncurses libcurl libressl libedit libuuid libjansson

package/asterisk/patches/patch-res_stasis_control_c

@@ -0,0 +1,11 @@
+--- asterisk-20.6.0.orig/res/stasis/control.c	2024-01-25 17:19:33.000000000 +0100
++++ asterisk-20.6.0/res/stasis/control.c	2024-02-05 15:20:24.824145190 +0100
+@@ -25,6 +25,8 @@
+ 
+ #include "asterisk.h"
+ 
++#include <signal.h>
++
+ #include "asterisk/stasis_channels.h"
+ #include "asterisk/stasis_app.h"
+