OpenAPI Update (#1081)

Update OpenAPI for cd5102fa2e78472f4fba8ab73c464203b528466b

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

embedded/openapi/spec3.beta.sdk.json

@@ -111205,7 +111205,7 @@
                     "description": "Controls phone number collection settings for the session.\n\nWe recommend that you review your privacy policy and check with your legal contacts\nbefore using this feature. Learn more about [collecting phone numbers with Checkout](https://stripe.com/docs/payments/checkout/phone-numbers).",
                     "properties": {
                       "enabled": {
-                        "description": "Set to `true` to enable phone number collection.",
+                        "description": "Set to `true` to enable phone number collection.\n\nCan only be set in `payment` and `subscription` mode.",
                         "type": "boolean"
                       }
                     },