Fix for Issue with ownerAddressUnstructured in BankAccountDetails model

[gritse]

I've received this for polish Pekao bank and got serialisation error:

/api/v2/accounts/{id}/details/

{
	"account": {
		"resourceId": "PL####################",
		"iban": "PL####################",
		"currency": "PLN",
		"ownerName": "#############",
		"product": "Rachunek oszczędnościowo – rozliczeniowy",
		"ownerAddressUnstructured": [
			"ZŁOTA 48-54 HOTEL MERCURE POKÓJ ###",
			"00-120 WARSZAWA",
			"POLSKA"
		]
	}
}

as we can see here, ownerAddressUnstructured is array of strings not just string. Official swagger for AccountDetailSchema also suggest that it's array: https://developer.gocardless.com/bank-account-data/endpoints

[RobinTTY]

Thanks for reporting it and creating a PR. Since the library uses List for all enumerable types, please change the type, otherwise looks good :)

[gritse]

Thanks for reporting it and creating a PR. Since the library uses List for all enumerable types, please change the type, otherwise looks good :)

Thanks! I've changed to List<string>? as you suggested :)

[RobinTTY]

@gritse Thanks, will create a new release shortly