S3 metrics: MetricCollector.publish() never reached, all kafka_tieredstorage_s3_* are 0

# What happened?

I am trying to scrape the S3 operations metrics, but they are all appear blank, and just do not tick. Every single S3 attribute is in its initial state - counters at 0, time sensors at NaN (which Kafka's Avg/Max return when count=0, i.e., never had a sample). Even for an idle metric you'd expect to see requests_total = N for some non-zero N if sensor.record() had ever been called. It hasn't, not once, for any operation type.

# What did you expect to happen?

Able to scrape the S3 operations metrics.

# What else do we need to know?

The MBean creation pipeline works (S3 metric names appear in the output). The pattern matching works (_total suffix preserved correctly via the COUNTER type rule we set up). The whitelisting works (all S3 attributes get scraped, even those with NaN).

Strimzi Operator 0.46.1
Kafka 3.9.0