@diosmosis could you maybe look at this one? refs #11974

• RELEASEDCustom reports (not sure if done already both in create and update custom reports). Should only rearchive the specific report
  PR: https://github.com/innocraft/plugin-CustomReports/pull/92
• RELEASED Users Flow: on activation it should archive all it's reports
  PR: https://github.com/innocraft/plugin-UsersFlow/pull/43
• RELEASEDMulti Channel Conversion Attribution: on activation it should archive all it's reports
  PR: https://github.com/innocraft/plugin-MultiChannelConversionAttribution/pull/27
• RELEASEDFunnels: When adding or updating a funnel rearchive that specific funnel
  PR: https://github.com/innocraft/plugin-Funnels/pull/70
• RELEASEDAbTesting: When updating (not adding) an existing A/B test then it should rearchive the data for A/B testing. Ideally it would do this back until abtest['created_date']. (which is often just a few days or weeks instead of multiple months)
  PR: https://github.com/innocraft/plugin-AbTesting/pull/63
• RELEASED Cohorts: On activation it should rearchive all it's reports (be good to confirm @diosmosis )
  PR: https://github.com/innocraft/plugin-Cohorts/pull/19