Improve CometSortMergeJoin statistics

[planga82]

What is the problem the feature request solves?

Add all statistics SortMergeJoinExec datafusion node provides.

Describe the potential solution

Override metrics map in CometSortMergeJoin to provide all available metrics

Additional context

Current metrics:

output_rows
Elapsed_compute

All available metrics

    /// Total time for joining probe-side batches to the build-side batches
    join_time: metrics::Time,
    /// Number of batches consumed by this operator
    input_batches: metrics::Count,
    /// Number of rows consumed by this operator
    input_rows: metrics::Count,
    /// Number of batches produced by this operator
    output_batches: metrics::Count,
    /// Number of rows produced by this operator
    output_rows: metrics::Count,   
    /// Peak memory used for buffered data.
    /// Calculated as sum of peak memory values across partitions
    peak_mem_used: metrics::Gauge