feat(androidpublisher): update the api

#### androidpublisher:v3

The following keys were added:
- resources.externaltransactions.methods.createexternaltransaction (Total Keys: 14)
- resources.externaltransactions.methods.getexternaltransaction (Total Keys: 11)
- resources.externaltransactions.methods.refundexternaltransaction (Total Keys: 12)
- schemas.ExternalSubscription (Total Keys: 3)
- schemas.ExternalTransaction (Total Keys: 29)
- schemas.FullRefund (Total Keys: 2)
- schemas.OneTimeExternalTransaction (Total Keys: 3)
- schemas.PartialRefund (Total Keys: 4)
- schemas.RecurringExternalTransaction (Total Keys: 5)
- schemas.RefundExternalTransactionRequest (Total Keys: 6)

Author: yoshi-automation