Use id for single positional arguments

[irace-stripe]

Use id for single resource method positional arguments, e.g.:

cancel: stripeMethod({
  method: 'POST',
  path: '{id}/cancel',
  urlParams: ['id'],
})

Instead of:

cancel: stripeMethod({
  method: 'POST',
  path: '{paymentIntentId}/cancel',
  urlParams: ['paymentIntentId'],
})

This PR does not:

1. Modify argument names for methods with multiple positional arguments, e.g.

updateRefund: stripeMethod({
  method: 'POST',
  path: '/{chargeId}/refunds/{refundId}',
  urlParams: ['chargeId', 'refundId'],
}),

2. Modify argument names in resource paths, e.g.

module.exports = StripeResource.extend({
  path: 'application_fees/{feeId}/refunds',
  includeBasic: ['create', 'list', 'retrieve', 'update'],
});