Watchdog support for account groups

[JCZuurmond]

Is there an existing issue for this?

• I have searched the existing issues

Problem statement

The account groups pile up over time causing integration tests to fail due to API call taking longer and integration tests timing out (e.g. #3706 and #3702)

Proposed Solution

By periodically cleaning up the accounts groups the API calls to list the account groups take less time, thus reducing the chance on integration tests failing.

Additional Context

No response