Example API JSON, "invoice_line_collection.sample", has invalid field

Overview:

The invoice_line_collection.sample file has a removed field, "vendorRefNo" which, when used by tools like raml-cop, fails to load due to the error:

ERROR Content is not valid according to schema: Additional properties not allowed: vendorRefNo

Steps to Reproduce:

1. Load: acq-models/mod-invoice-storage/examples/invoice_line_collection.sample
2. Note this sample refers to "vendorRefNo" which has been removed

Expected Results:

The sample should use the new "referenceNumbers" field like in invoice_line.sample.

Actual Results:

Broken sample that cannot be loaded via raml-cop.

Additional Information:

mod-invoice-storage v5.0.0

acq-models commit 6ad8fc2

Failure line: https://github.com/folio-org/acq-models/blob/6ad8fc2d592af22a7db24b0e24a06e998b91f00b/mod-invoice-storage/examples/invoice_line_collection.sample#L40