message: CHANGELOG: mention new sync leaper metrics
diff: @@ -15,7 +15,7 @@ All notable changes to this project will be documented in this file. The format
  ### Added
  * Add `net-info` command to diagnostics port to gain insights into the nodes network connectivity state.
  -* Add metrics `deploy_buffer_total_deploys`, `deploy_buffer_held_deploys`, `deploy_buffer_dead_deploys` to report status of the node deploy buffer and `block_accumulator_block_acceptors`, `block_accumulator_known_child_blocks` to track status of the block accumulator component.
  +* Add metrics `deploy_buffer_total_deploys`, `deploy_buffer_held_deploys`, `deploy_buffer_dead_deploys` to report status of the node deploy buffer, `block_accumulator_block_acceptors`, `block_accumulator_known_child_blocks` to track status of the block accumulator component, `sync_leap_duration`, `sync_leap_fetched_from_peer`, `sync_leap_rejected_by_peer`, `sync_leap_cant_fetch` to track progress of the sync leaper component.
  ### Changed
  