fix: Set correct options for link field

issue introduced via https://github.com/frappe/erpnext/pull/30711
diff --git a/erpnext/telephony/doctype/call_log/call_log.json b/erpnext/telephony/doctype/call_log/call_log.json
index c0d416c..a41ddb1 100644
--- a/erpnext/telephony/doctype/call_log/call_log.json
+++ b/erpnext/telephony/doctype/call_log/call_log.json
@@ -144,7 +144,7 @@
    "fieldtype": "Link",
    "hidden": 1,
    "label": "Employee User Id",
-   "options": "Employee"
+   "options": "User"
   },
   {
    "fieldname": "type_of_call",
@@ -157,14 +157,14 @@
    "fieldname": "call_received_by",
    "fieldtype": "Link",
    "label": "Call Received By",
-   "options": "User",
+   "options": "Employee",
    "read_only": 1
   }
  ],
  "in_create": 1,
  "index_web_pages_for_search": 1,
  "links": [],
- "modified": "2022-04-14 00:18:31.148428",
+ "modified": "2022-04-14 02:59:22.503202",
  "modified_by": "Administrator",
  "module": "Telephony",
  "name": "Call Log",