Reschedule RecalculateVulnerabilitiesOccurrencesUuid for all findings to rectify UUIDv5

Why are we doing this work

After !60540 (merged) got merged I noticed 276/4162 of jobs are still pending. We need to reschedule those and figure out what's wrong (if anything).

As we have recently discovered (!67578 (merged)), the way we were generating UUIDv5 was wrong, we need to reschedule BG migration for all findings again.

Implementation plan

• database db/post_migrate/20210604070207_retry_backfill_traversal_ids.rb can be used as a base for this
• Reschedule RecalculateVulnerabilitiesOccurrencesUuid for all findings