CI: upgrade RAN-SA-Handover-CN5G F1 handover test to test Reestablishment on a different DU

- increase requirements for Event A3 trigger to avoid unwanted handovers
  and allow testing reestablishment on different DUs
- increase ping_packetloss_threshold from 5 to 30 because we are forcing
  a reestablishment, thus, packet loss will inevitably happen
- further adjustments to avoid A3 Events

ci-scripts/conf_files/neighbour-config-ho.conf

@@ -47,8 +47,8 @@ nr_measurement_configuration = {
 
   A3 = ({
     physCellId = -1; #Default
-    offset = 10;
-    hysteresis = 0;
-    time_to_trigger = 1
+    offset = 16;
+    hysteresis = 1;
+    time_to_trigger = 10;
   })
 };