collab: Add has_overdue_invoices to billing_customers (#24239)

This PR adds a new `has_overdue_invoices` field to the
`billing_customers` table.

This will be used to statefully track whether a customer has overdue
invoices, and also to reset it when the invoices are paid.

We will set this field to `true` when a subscription is canceled with
the reason `payment_failed`.

Release Notes:

- N/A

crates/collab/src/db/tables/billing_customer.rs

@@ -9,6 +9,7 @@ pub struct Model {
     pub id: BillingCustomerId,
     pub user_id: UserId,
     pub stripe_customer_id: String,
+    pub has_overdue_invoices: bool,
     pub created_at: DateTime,
 }