Reschedule traversal_ids, archived `vulnerability_reads` backfill
requested to merge 437675-implement-background-migration-to-set-traversal_ids-and-archived-columns-for-the-existing into master
What does this MR do and why?
Due to unforeseen paths that could result in invalid vulnerability_read states being found after it's first execution, we need to rerun the BG migration from !144765 (merged) to ensure that all records are now correctly set now that those paths have been remediated.
MR acceptance checklist
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Related to #437675