Apache Flink

Hey all - we have a scenario where we were given a Kinesis stream and credentials to use in another account, but we would like to publish the metrics for those producers to our account.

Looking at the <https://github.com/apache/flink-connector-aws/blob/main/flink-connector-kinesis/src/main/java/org/apache/flink/streaming/connectors/kinesis/util/KinesisConfigUtil.java#L491|KinesisConfigUtil.java> for setting up the producer, it looks like the <https://github.com/awslabs/amazon-kinesis-producer/blob/master/java/amazon-kinesis-producer/src/main/java/com/amazonaws/services/kinesis/producer/KinesisProducerConfiguration.java#L139|KinesisProducerConfiguration.java> contains a configuration that allows you to set separate credentials for Cloudwatch metrics via `setMetricsCredentialsProvider`, but the KinesisConfigUtil doesn't utilize it.

Is it possible to set them anywhere or would this require some sort of code change or PR?