feat: add TIMEZONE field to schedule

Signed-off-by: Jongmin Kim <[email protected]>

Author: whdalsrnt

proto/spaceone/api/alert_manager/v1/service_channel.proto

@@ -82,13 +82,14 @@ message ChannelSchedule {
     }
 
     ChannelScheduleType SCHEDULE_TYPE = 1;
-    ChannelScheduleInfo SUN = 8;
-    ChannelScheduleInfo MON = 2;
-    ChannelScheduleInfo TUE = 3;
-    ChannelScheduleInfo WED = 4;
-    ChannelScheduleInfo THU = 5;
-    ChannelScheduleInfo FRI = 6;
-    ChannelScheduleInfo SAT = 7;
+    string TIMEZONE = 2;
+    ChannelScheduleInfo MON = 3;
+    ChannelScheduleInfo TUE = 4;
+    ChannelScheduleInfo WED = 5;
+    ChannelScheduleInfo THU = 6;
+    ChannelScheduleInfo FRI = 7;
+    ChannelScheduleInfo SAT = 8;
+    ChannelScheduleInfo SUN = 9;
 }
 
 message ServiceChannelCreateRequest {