fix: typeerror on Payment Entry (backport #42966)

[mergify]

TypeError: Cannot read properties of undefined (reading 'default_currency')
  at set_dynamic_labels(payment_entry__js:306:49)
  at _handler(../../../../../apps/frappe/frappe/public/js/frappe/form/script_manager.js:30:12)
  at refresh(payment_entry__js:196:14)
  at _handler(../../../../../apps/frappe/frappe/public/js/frappe/form/script_manager.js:30:12)
  at runner(../../../../../apps/frappe/frappe/public/js/frappe/form/script_manager.js:109:16)
  at <anonymous>(../../../../../apps/frappe/frappe/public/js/frappe/form/script_manager.js:127:22)

Internal Ref: 20966

---

This is an automatic backport of pull request #42966 done by Mergify.