Partition by dimension in metrics_anomaly_score

[nescobar]

Describe the bug
In metrics_anomaly_score.sql, the metric_value is not partitioned by dimensions when using the dimension properties. This affects the calculation of the anomaly score since it is derived from the average of the metric values across ALL dimensions.

To Reproduce
Steps to reproduce the behavior:

In the code below, the metric_value is not being partitioned by dimensions:

avg(metric_value) over (partition by metric_name, full_table_name, column_name order by bucket_start asc rows between unbounded preceding and current row) as training_avg

Expected behavior
The average metric_value should be partitioned by dimension_value when dimensions are being used

avg(metric_value) over (partition by metric_name, full_table_name, column_name, dimension_value order by bucket_start asc rows between unbounded preceding and current row) as training_avg