Update kafka lag predictor prometheus metric names as _total gets add…

…ed onto the end of Counters.

[SRE-7935]

docs/products/kafka/howto/enabled-consumer-lag-predictor.rst

@@ -102,10 +102,10 @@ After enabling the consumer lag predictor, you can use Prometheus to access and
    * - Metric
      - Type
      - Description
-   * - ``kafka_lag_predictor_topic_produced_records``
+   * - ``kafka_lag_predictor_topic_produced_records_total``
      - Counter
      - Represents the total count of records produced.
-   * - ``kafka_lag_predictor_group_consumed_records``
+   * - ``kafka_lag_predictor_group_consumed_records_total``
      - Counter
      - Represents the total count of records consumed.
    * - ``kafka_lag_predictor_group_lag_predicted_seconds``