fix(Scripts/HellfireRamparts): Hellfire Sentry should aggro on each o… (#13878)

fix(Scripts/HellfireRamparts): Hellfire Sentry should aggro on each other's target.

Fixes #13747

data/sql/updates/pending_db_world/rev_1668883622593350000.sql

@@ -0,0 +1,4 @@
+--
+DELETE FROM `smart_scripts` WHERE `entryorguid`=17517 AND `source_type`=0 AND `id`=1;
+INSERT INTO `smart_scripts` VALUES
+(17517,0,1,0,4,0,100,0,0,0,0,0,0,45,0,1,0,0,0,0,23,0,0,0,0,0,0,0,0,'Hellfire Sentry - On Aggro - Set Data 0-1 on summoner');

src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_vazruden_the_herald.cpp

@@ -132,6 +132,14 @@ public:
                 BossAI::EnterEvadeMode();
         }
 
+        void SetData(uint32 type, uint32 data) override
+        {
+            if (type == 0 && data == 1)
+            {
+                summons.DoZoneInCombat(NPC_HELLFIRE_SENTRY);
+            }
+        }
+
         void UpdateAI(uint32  /*diff*/) override
         {
             if (!me->IsVisible() && summons.size() == 0)