Changes to GET /api/transactions/:reference_id_or_heron_id

added the new debt.collections.mca enum value to the transaction_enriched/merchant/allOf[#/components/schemas/Merchant]/group_id response property for the response status 200

added the optional property transaction_enriched/features/allOf[#/components/schemas/TransactionFeatures]/is_payment_processing to the response with the 200 status

added the optional property transaction_enriched/file_class to the response with the 200 status

added the optional property transaction_enriched/statement_reconciliation_method to the response with the 200 status

added the optional property transaction_enriched/statement_reconciliation_status to the response with the 200 status