AI/SmartScripts: Replace SMART_ACTION_INVOKER_CAST with SMART_ACTION_SELF_CAST in action 85. SMART_ACTION_INVOKER_CAST moves to 134.

(cherry picked from commit 0df3cb5bcc)

src/server/game/AI/SmartScripts/SmartScriptMgr.cpp

@@ -1290,6 +1290,7 @@ bool SmartAIMgr::IsEventValid(SmartScriptHolder& e)
                 // return false;
             }
             // no break
+        case SMART_ACTION_SELF_CAST:
         case SMART_ACTION_ADD_AURA:
             if (!IsSpellValid(e, e.action.cast.spell))
                 return false;