Remove expired A and PTR records left when HTTP 404 is seen

[MeganerdDev]

Closes: #922

What's Changed

We will attempt to remove "stale" records when we see the HTTP 404 for A and PTR records

To Do

• Explanation of Change(s)
• Added change log fragment(s) (for more information see the documentation)
• Attached Screenshots, Payload Example
• Unit, Integration Tests
• Documentation Updates (when adding/changing features)
• Outline Remaining Work, Constraints from Design

[jdrew82]

@MeganerdDev can you address the linter and ensure tests are passing and we have coverage for these new bits? Also, I think this should be behind a setting for the integration so that users choose this behavior. We don't want to surprise them if data goes missing unexpectedly.