[stripe] bank account creation requires object: "bank_account" (#37956)

types/stripe/index.d.ts

@@ -6801,6 +6801,11 @@ declare namespace Stripe {
         }
 
         interface ISourceCreationOptions {
+            /**
+             * The type of payment source. Should be "bank_account".
+             */
+            object: "bank_account";
+
             /**
              * The account number for the bank account in string form.
              * Must be a checking account.

types/stripe/stripe-tests.ts

@@ -639,6 +639,7 @@ stripe.customers.createSource(
     "cus_5rfJKDJkuxzh5Q",
     {
         source: {
+            object: 'bank_account',
             country: 'US',
             currency: 'USD',
             account_holder_name: 'Account Holder',
@@ -656,6 +657,7 @@ stripe.customers.createSource(
     "cus_5rfJKDJkuxzh5Q",
     {
         source: {
+            object: 'bank_account',
             country: 'US',
             currency: 'USD',
             account_holder_name: 'Account Holder',