kea: create /var/run/kea in init script

Kea expects /var/run/kea to exist. Without it, errors occur:

  Mon Jun 13 10:31:45 2022 daemon.err kea-dhcp6[2977]: Unable to use interprocess sync lockfile (No such file or directory): /var/run/kea/logger_lockfile

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

net/kea/files/kea.init

@@ -8,6 +8,8 @@ BIN_PATH="/usr/sbin"
 CONF_PATH="/etc/kea"
 
 start_service() {
+	mkdir -p /var/run/kea
+
 	config_load "kea"
 	config_foreach start_kea "service"
 }