Core/Misc: added more fallthrough attributes and added some missing breaks reported by CI

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

@@ -2178,8 +2178,8 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
                     TC_LOG_DEBUG("scripts.ai", "SmartScript::ProcessAction:: SMART_ACTION_RANDOM_SOUND: target: %s (%s), sound: %u, onlyself: %s",
                         target->GetName().c_str(), target->GetGUID().ToString().c_str(), sound, onlySelf ? "true" : "false");
                 }
-                break;
             }
+            break;
         }
         case SMART_ACTION_SET_CORPSE_DELAY:
         {