feat(recaptchaenterprise): update the API

#### recaptchaenterprise:v1

The following keys were added:
- schemas.GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessment.properties.riskReasons.description
- schemas.GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessment.properties.riskReasons.items.$ref
- schemas.GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessment.properties.riskReasons.readOnly
- schemas.GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessment.properties.riskReasons.type
- schemas.GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason.description
- schemas.GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason.id
- schemas.GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason.properties.reason.description
- schemas.GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason.properties.reason.enum
- schemas.GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason.properties.reason.enumDescriptions
- schemas.GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason.properties.reason.readOnly
- schemas.GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason.properties.reason.type
- schemas.GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason.type

Author: yoshi-automation

discovery/recaptchaenterprise-v1.json

@@ -786,7 +786,7 @@
       }
     }
   },
-  "revision": "20250427",
+  "revision": "20250504",
   "rootUrl": "https://recaptchaenterprise.googleapis.com/",
   "schemas": {
     "GoogleCloudRecaptchaenterpriseV1AccountDefenderAssessment": {
@@ -1412,6 +1412,14 @@
           "description": "Output only. Assessment of this transaction for risk of being part of a card testing attack.",
           "readOnly": true
         },
+        "riskReasons": {
+          "description": "Output only. Reasons why the transaction is probably fraudulent and received a high transaction risk score.",
+          "items": {
+            "$ref": "GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason"
+          },
+          "readOnly": true,
+          "type": "array"
+        },
         "stolenInstrumentVerdict": {
           "$ref": "GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentStolenInstrumentVerdict",
           "description": "Output only. Assessment of this transaction for risk of a stolen instrument.",
@@ -1452,6 +1460,34 @@
       },
       "type": "object"
     },
+    "GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason": {
+      "description": "Risk reasons applicable to the Fraud Prevention assessment.",
+      "id": "GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason",
+      "properties": {
+        "reason": {
+          "description": "Output only. Risk reasons applicable to the Fraud Prevention assessment.",
+          "enum": [
+            "REASON_UNSPECIFIED",
+            "HIGH_TRANSACTION_VELOCITY",
+            "EXCESSIVE_ENUMERATION_PATTERN",
+            "SHORT_IDENTITY_HISTORY",
+            "GEOLOCATION_DISCREPANCY",
+            "ASSOCIATED_WITH_FRAUD_CLUSTER"
+          ],
+          "enumDescriptions": [
+            "Default unspecified type.",
+            "A suspiciously high number of recent transactions have used identifiers present in this transaction.",
+            "User is cycling through a suspiciously large number of identifiers, suggesting enumeration or validation attacks within a potential fraud network.",
+            "User has a short history or no history in the reCAPTCHA network, suggesting the possibility of synthetic identity generation.",
+            "Identifiers used in this transaction originate from an unusual or conflicting set of geolocations.",
+            "This transaction is linked to a cluster of known fraudulent activity."
+          ],
+          "readOnly": true,
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
     "GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentStolenInstrumentVerdict": {
       "description": "Information about stolen instrument fraud, where the user is not the legitimate owner of the instrument being used for the purchase.",
       "id": "GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentStolenInstrumentVerdict",

src/apis/recaptchaenterprise/v1.ts

@@ -541,6 +541,10 @@ export namespace recaptchaenterprise_v1 {
      * Output only. Assessment of this transaction for risk of being part of a card testing attack.
      */
     cardTestingVerdict?: Schema$GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentCardTestingVerdict;
+    /**
+     * Output only. Reasons why the transaction is probably fraudulent and received a high transaction risk score.
+     */
+    riskReasons?: Schema$GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason[];
     /**
      * Output only. Assessment of this transaction for risk of a stolen instrument.
      */
@@ -568,6 +572,15 @@ export namespace recaptchaenterprise_v1 {
      */
     risk?: number | null;
   }
+  /**
+   * Risk reasons applicable to the Fraud Prevention assessment.
+   */
+  export interface Schema$GoogleCloudRecaptchaenterpriseV1FraudPreventionAssessmentRiskReason {
+    /**
+     * Output only. Risk reasons applicable to the Fraud Prevention assessment.
+     */
+    reason?: string | null;
+  }
   /**
    * Information about stolen instrument fraud, where the user is not the legitimate owner of the instrument being used for the purchase.
    */