ADAP-923: Resolve issue where backup parameter was inadvertently considered in configuration change monitoring

[mikealfare]

resolves #621

Problem

The backup parameter is considered in configuration change monitoring. However, we're not currently able to query this parameter from Redshift. As a result, setting backup equal to False always returns a configuration change since the default value is True. This is a problem when on_configuration_change='fail' since the run fails when it should pass.

Solution

Add a functional test demonstrating the issue using the reporter's example. Remove backup from configuration change monitoring.

Checklist

• I have read the contributing guide and understand what's expected of me
• I have run this code in development and it appears to resolve the stated issue
• This PR includes tests, or tests are not required/relevant for this PR
• This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX

[VersusFacit]

What a curious fix. Thank you for documenting it in the test what's going on.