fix: consider holiday list for SLA

crm/fcrm/doctype/crm_service_level_agreement/crm_service_level_agreement.py

@@ -114,7 +114,7 @@ def calc_time(
 	):
 		res = get_datetime(start_at)
 		time_needed = duration_seconds
-		holidays = []
+		holidays = self.get_holidays()
 		weekdays = get_weekdays()
 		workdays = self.get_workdays()
 		while time_needed:
@@ -214,3 +214,12 @@ def is_working_time(self, date_time, working_hours):
 		start_time, end_time = working_hours.get(day_of_week, (0, 0))
 		date_time = timedelta(hours=date_time.hour, minutes=date_time.minute, seconds=date_time.second)
 		return start_time <= date_time < end_time
+
+	def get_holidays(self):
+		res = []
+		if not self.holiday_list:
+			return res
+		holiday_list = frappe.get_doc("CRM Holiday List", self.holiday_list)
+		for row in holiday_list.holidays:
+			res.append(row.date)
+		return res