fix: Add cost center in loan document

(cherry picked from commit 5d66cc4c4a)

# Conflicts:
#	erpnext/loan_management/doctype/loan_interest_accrual/loan_interest_accrual.py
#	erpnext/patches.txt

erpnext/patches/v13_0/add_cost_center_in_loans.py

@@ -0,0 +1,16 @@
+import frappe
+
+
+def execute():
+	frappe.reload_doc('loan_management', 'doctype', 'loan')
+	loan = frappe.qb.DocType('Loan')
+
+	for company in frappe.get_all('Company', pluck='name'):
+		default_cost_center = frappe.db.get_value('Company', company, 'cost_center')
+		frappe.qb.update(
+			loan
+		).set(
+			loan.cost_center, default_cost_center
+		).where(
+			loan.company == company
+		).run()