The background metadata consistency check can fail when its catalog snapshot expires before the aggregation cursor is established, returning SnapshotTooOld error. Although minSnapshotHistoryWindowInSeconds defaults to 300s, config-fuzzer suites can run with a much shorter snapshot-history window. 

As part of this ticket, we need to update the metadata consistency hook to abort the current check and retry the full check later with a fresh snapshot timestamp instead of failing the test. This can be achieved by setting the the SnapshotTooOld error as transient in the CMC isTransientError() function.