NIFI-9655 Add Queue Logging to ListenUDP

[exceptionfactory]

Description of PR

NIFI-9655 Adds queue size debug logging to ListenUDP and ListenUDPRecord through updates to the AbstractListenEventProcessor.

The debug logging occurs at most once per minute. The implementation uses an AtomicLong to track the minimum next timestamp in milliseconds for logging, and relies on processor scheduling for logging invocation. This approach avoids running an additional thread for background logging, and expects that the processor will be scheduled more often than 60 second intervals. The implementation leverages a custom TrackingLinkedBlockingQueue to maintain the largest queue size over the lifecycle of the processor. Restarting the processor resets the queue and associated largest queue size tracking.

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[thenatog]

Tested the log and saw it appearing every 60 seconds. +1 from me

[markap14]

Looks good to me too. Thanks for improving that! +1 merged to main