fix cfg_get.kazoo.fast_pickup_cookies typo

kamailio/fast-pickup-role.cfg

@@ -140,7 +140,7 @@ route[FAST_PICKUP_INIT]
    }
 
    ## fast pickup with cookies
-   if(@cfg_get.fast_pickup_cookies == 1) {
+   if(@cfg_get.kazoo.fast_pickup_cookies == 1) {
       if($var(AppName) == "park") {
           $var(Pickup) = 1; #";a-leg=true";
       } else {