Core/Misc: Fix msvc build with version 17.10

Closes #29999

(cherry picked from commit d8240fb513fc18ee9bac067f8333aab1d96005d9)

src/server/game/Scripting/ScriptMgr.cpp

@@ -493,7 +493,7 @@ class CreatureGameObjectScriptRegistrySwapHooks
             }
         };
 
-        AIFunctionMapWorker<typename std::decay<decltype(evaluator)>::type> worker(std::move(evaluator));
+        AIFunctionMapWorker<std::decay_t<decltype(evaluator)>> worker(std::move(evaluator));
         TypeContainerVisitor<decltype(worker), MapStoredObjectTypesContainer> containerVisitor(worker);
 
         containerVisitor.Visit(map->GetObjectsStore());