FND-1584. This is a follow-up of #40683.

The process to delete contact-rollups records and Pardot prospects has been failing silently since 1/2021. There are 6K+ records marked for deletion in ContactRollupsPardotMemory that are not deleted.

ContactRollupsPardotMemory.where.not(marked_for_deletion_at: nil).count  #6340

This means we still keep data from users who requested us to delete their info in both our system (ContactRollups) and an external system (Pardot). There are 2 reasons:

1. Invalid email address caused the deletion process to fail, as reported in Honeybadger #79757239.
2. The error was silent because we save exception in a LogCollector instance but did not report it to Honeybadger. (The Honeybadger above is created recently as a result of this fix.)

Testing story

Manually test the fix in Rails console using the invalid email from the Honeybadger above.

require 'cdo/contact_rollups/v2/pardot'
PardotV2.retrieve_pardot_ids_by_email(invalid_email)
PardotV2.delete_prospects_by_email(invalid_email)

PR Checklist:

• Tests provide adequate coverage
• Privacy and Security impacts have been assessed
• Code is well-commented
• New features are translatable or updates will not break translations
• Relevant documentation has been added or updated
• User impact is well-understood and desirable
• Pull Request is labeled appropriately
• Follow-up work items (including potential tech debt) are tracked and linked