MT#57110 Check avp "s:" + branch_id + "callee_rU" in invite_alias_devid

Avp "s:" + branch_id + "callee_rU" must store the value of the rU after
the branching.
Adding test to check this behaviour inside scenario invite_alias_devid.

Change-Id: I4328a71b3f22ea186348bb9317af516ea980a3bb

scenarios_pbx/config.yml

@@ -7,6 +7,7 @@ b2b:
 kamailio:
   proxy:
     allow_refer_method: yes
+    generate_responder_cdr_data: yes
     presence:
       enable: yes
     skip_cf_loop: 'yes'

scenarios_pbx/invite_alias_devid/0016_test.yml.tt2

@@ -15,6 +15,7 @@ flow:
   - return|REPLY_ROUTE_RTPENGINE:
   - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
+      $avp(s:0-callee_rU): ["4311003"]
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
   - start|dialog:start: