perf: cache and simplify queries for holiday list (#35315)

diff --git a/erpnext/setup/doctype/employee/employee.py b/erpnext/setup/doctype/employee/employee.py
index ece5a7d..566392c 100755
--- a/erpnext/setup/doctype/employee/employee.py
+++ b/erpnext/setup/doctype/employee/employee.py
@@ -257,7 +257,9 @@
 
 def get_holiday_list_for_employee(employee, raise_exception=True):
 	if employee:
-		holiday_list, company = frappe.db.get_value("Employee", employee, ["holiday_list", "company"])
+		holiday_list, company = frappe.get_cached_value(
+			"Employee", employee, ["holiday_list", "company"]
+		)
 	else:
 		holiday_list = ""
 		company = frappe.db.get_single_value("Global Defaults", "default_company")
diff --git a/erpnext/setup/doctype/holiday_list/holiday_list.py b/erpnext/setup/doctype/holiday_list/holiday_list.py
index fad827a..84d0d35 100644
--- a/erpnext/setup/doctype/holiday_list/holiday_list.py
+++ b/erpnext/setup/doctype/holiday_list/holiday_list.py
@@ -115,6 +115,8 @@
 	if date is None:
 		date = today()
 	if holiday_list:
-		return bool(frappe.get_all("Holiday List", dict(name=holiday_list, holiday_date=date)))
+		return bool(
+			frappe.db.exists("Holiday", {"parent": holiday_list, "holiday_date": date}, cache=True)
+		)
 	else:
 		return False