Finalize BackfillOwaspTopTenOfVulnerabilityReads migration

What does this MR do and why?

Finalize the migration introduced in !139544 (merged) as it is verified and completed on production.

See: #419092 (comment 1719546814)

Database

Output of the post-deployment migration

bundle exec rake db:migrate:up:main VERSION=20231214111617

main: == [advisory_lock_connection] object_id: 117260, pg_backend_pid: 26180
main: == 20240124105532 FinalizeBackfillOwaspTopTenOfVulnerabilityReads: migrating ==
main: -- transaction_open?(nil)
main:    -> 0.0000s
main: == 20240124105532 FinalizeBackfillOwaspTopTenOfVulnerabilityReads: migrated (0.0284s)

main: == [advisory_lock_connection] object_id: 117260, pg_backend_pid: 26180

bundle exec rake db:migrate:down:main VERSION=20240124105532

main: == [advisory_lock_connection] object_id: 117260, pg_backend_pid: 25723
main: == 20240124105532 FinalizeBackfillOwaspTopTenOfVulnerabilityReads: reverting ==
main: == 20240124105532 FinalizeBackfillOwaspTopTenOfVulnerabilityReads: reverted (0.0030s)

main: == [advisory_lock_connection] object_id: 117260, pg_backend_pid: 25723

Related to #419092 (closed)