fix: update modified timestamp

Was missing in 434c2a1815f27c59de5cd94528bc371593bdd402
diff --git a/erpnext/stock/doctype/item/item.json b/erpnext/stock/doctype/item/item.json
index 6e93f56..13f3be8 100644
--- a/erpnext/stock/doctype/item/item.json
+++ b/erpnext/stock/doctype/item/item.json
@@ -888,7 +888,7 @@
  "index_web_pages_for_search": 1,
  "links": [],
  "make_attachments_public": 1,
- "modified": "2023-09-11 13:46:32.688051",
+ "modified": "2023-09-18 15:41:32.688051",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Item",