TT#51701 Switch from deprecated /var/run to /run

The upstream parts will get updated when we switch to the next upstream
release as they have already been merged in upstream's master from the
pull request <https://github.com/kamailio/kamailio/pull/2110>.

Change-Id: I6408ee3d47d87be9bbe719b0e6da41e85d875764

debian/ngcp-kamailio.postinst

@@ -3,7 +3,7 @@
 
 set -e
 
-HOMEDIR=/var/run/kamailio
+HOMEDIR=/run/kamailio
 
 case "$1" in
     configure)