dt: allow cleanup.policy config diff in backport #17807
Merged
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The fix for changing the source type of the cleanup.policy config from DYNAMIC_TOPIC_CONFIG to DEFAULT_CONFIG is backported to v23.3.x now, and so we need to relax the check in the test_upgrade_compat test to allow observing this config difference in the backported versions as well.
Relates to: https://redpandadata.atlassian.net/browse/CORE-2205
Backports Required
Release Notes