Update statement_timeout to not use a transaction

[ezekg]

Resolves an issue where VACUUM would fail because it can't run inside a transaction.

[sentry-io[bot]]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ ActiveRecord::QueryCanceled: PG::QueryCanceled: ERROR: canceling statement due to statement timeout (ActiveRecord::QueryCance... Sidekiq/PruneRequestLogsWorker View Issue
• ‼️ ActiveRecord::QueryCanceled: PG::QueryCanceled: ERROR: canceling statement due to statement timeout (ActiveRecord::QueryCance... Sidekiq/PruneMetricsWorker View Issue
• ‼️ ActiveRecord::QueryCanceled: PG::QueryCanceled: ERROR: canceling statement due to statement timeout (ActiveRecord::QueryCance... Sidekiq/PruneRequestLogsWorker View Issue
• ‼️ ActiveRecord::QueryCanceled: PG::QueryCanceled: ERROR: canceling statement due to statement timeout (ActiveRecord::QueryCance... Sidekiq/VacuumAnalyzeMetricsWorker View Issue
• ‼️ ActiveRecord::QueryCanceled: PG::QueryCanceled: ERROR: canceling statement due to statement timeout (ActiveRecord::QueryCance... Sidekiq/VacuumAnalyzeWebhookEventsWorker View Issue

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