asterisk-lts: 13.15.0 -> 13.17.1

pkgs/servers/asterisk/default.nix

···
 {
 
   asterisk-lts = common {
-    version = "13.15.0";
-    sha256 = "0i2qzfa1iyh66nma39kdigb9lp5gz3sn46znd2djz24wgmamb2lb";
+    version = "13.17.1";
+    sha256 = "0d7vqpkz0wv8d17vi7qxs9j7dbqwf4n80s411qva030hljcmdqdf";
     externals = {
       "externals_cache/pjproject-2.6.tar.bz2" = pjproject-26;
       "addons/mp3" = mp3-202;