OpenAPI Update (#1071)

Update OpenAPI for 6fa07fb28410758e3cfd62160ef6c05ddaeb383c

Co-authored-by: Stripe OpenAPI <105521251+stripe-openapi[bot]@users.noreply.github.com>

Author: stripe-openapi[bot]

embedded/openapi/spec3.beta.sdk.json

@@ -91002,7 +91002,8 @@
                       "company_registration_verification",
                       "company_tax_id_verification",
                       "company_vat_id_verification",
-                      "proof_of_registration"
+                      "proof_of_registration",
+                      "proof_of_ultimate_beneficial_ownership"
                     ]
                   },
                   "email": {
@@ -93981,7 +93982,8 @@
                       "company_registration_verification",
                       "company_tax_id_verification",
                       "company_vat_id_verification",
-                      "proof_of_registration"
+                      "proof_of_registration",
+                      "proof_of_ultimate_beneficial_ownership"
                     ]
                   },
                   "email": {