fix: patch - Duplicate entry quality inspection parameter (#38262)

diff --git a/erpnext/patches/v13_0/convert_qi_parameter_to_link_field.py b/erpnext/patches/v13_0/convert_qi_parameter_to_link_field.py
index e53bdf8..08ddbbf 100644
--- a/erpnext/patches/v13_0/convert_qi_parameter_to_link_field.py
+++ b/erpnext/patches/v13_0/convert_qi_parameter_to_link_field.py
@@ -21,6 +21,9 @@
 	params = set({x.casefold(): x for x in params}.values())
 
 	for parameter in params:
+		if frappe.db.exists("Quality Inspection Parameter", parameter):
+			continue
+
 		frappe.get_doc(
 			{"doctype": "Quality Inspection Parameter", "parameter": parameter, "description": parameter}
 		).insert(ignore_permissions=True)