Adds support for using Accounts v2 payment method billing details for Stripe Tax locationBreaking changes

What’s new

Adds the payment_method value to the location_source enum on the Accounts v2 Customer Configuration.

Why is this a breaking change?

This change adds a new payment_method value to the closed location_source enum. Users receiving a response with the unexpected payment_method value might handle the response incorrectly.

Impact

Stripe Tax users can now use a payment method to calculate tax for an Accounts v2 transaction by setting location_source to payment_method. We use the billing details of the most specific default payment method available, in the following order of priority:

1. Invoice, if present.
2. Subscription, if present.
3. Accounts v2 Customer Configuration, if present.

Changes

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