Introduce new `non_existing_record_id`/`non_existing_record_iid` spec helpers and fix id dependent specs
What does this MR do?
This introduces new non_existing_record_id
/non_existing_record_iid
spec helpers to avoid using 123
/999
for "non-existing ID/IIDs" in specs.
Does this MR meet the acceptance criteria?
Conformity
Edited by Rémy Coutable