Changes to Get webhook endpoints

the page response's property type changed from object to no type for status 200

removed the optional property page/nextPage from the response with the 200 status

removed the optional property page/previousPage from the response with the 200 status

media type application/json was changed to application/json;charset=utf-8 for the response status 200

added Page to the page response property allOf list for the response status 200

removed subschema #2 from the webhooks/items/createdAt response property allOf list for the response status 200

removed subschema #2 from the webhooks/items/id response property allOf list for the response status 200

removed subschema #2 from the webhooks/items/status response property allOf list for the response status 200

removed subschema #2 from the webhooks/items/updatedAt response property allOf list for the response status 200

removed the checkingAccount.availableBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the checkingAccount.currentBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the checkingAccount.inFlightBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the creditAccount.availableBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the creditAccount.currentBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the creditAccount.inFlightBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the investmentAccount.availableBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the investmentAccount.currentBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the investmentAccount.inFlightBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the savingsAccount.availableBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the savingsAccount.currentBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the savingsAccount.inFlightBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the treasuryAccount.availableBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the treasuryAccount.currentBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200

removed the treasuryAccount.inFlightBalance enum value from the webhooks/items/filterPaths/items response property for the response status 200