fix: return type error

Author: yangwb1123

src/ProdScheduler/SchedulerInterface.php

@@ -37,7 +37,7 @@ public function getGroup(): AssemblelyGroups;
 
     public function getGroupName(AssemblelyGroups $id): string;
 
-    public function getDefaultDayCalendar(): bool;
+    public function getDefaultDayCalendar(): array;
 
     // Equal division quantity
     public function getEDQ(): int;