sql: add stats to telemetry sampled query event

This adds the MVCC stats, cpu usage, and latency information to the
telemetry sampled query event. This is needed to make it match the
data available in the system statement_statistics table.

Epic: none
Closes: #89887

Release note (sql change): Adds the MVCC stats, cpu usage, and latency
information to the telemetry sampled query event.