Better tracking of SeekableStreamSupervisor status after reset

[The `SeekableStreamSupervisor` throws an exception after it successfully resets the offset for a partition](https://github.com/apache/incubator-druid/blob/master/indexing-service/src/main/java/org/apache/druid/indexing/seekablestream/supervisor/SeekableStreamSupervisor.java#L2520-L2524). This looks strange to me because it's not really an exceptional case. I think it's throwing an exception to show to druid operators that the reset happened using the API introduced in #7428 which seems not very useful though. It would be probably better to show the time when the most recent reset happened.

Start in indexing-service/src/main/java/org/apache/druid/indexing/seekablestream/supervisor/SeekableStreamSupervisor.java around lines 2520-2524, where the exception follows a successful partition offset reset. Review the reset API introduced in #7428 and determine how the latest reset time should be exposed to Druid operators. Done means the reset status is tracked with its most recent time instead of being reported as an exceptional case.

Written by the indexing model from the issue text.