DOCSP-36294-update-metrics-ref-in-4.2-rel-notes (#6259)

Author: mmaville-mdb

source/release-notes/4.2.txt

@@ -1814,11 +1814,11 @@ the following output changes:
          <metrics.repl.network.notPrimaryUnacknowledgedWrites>`
 
    * - :serverstatus:`metrics.repl`
-     - Added new :serverstatus:`metrics.repl.stepDown` metrics:
+     - Added new :serverstatus:`metrics.repl.stateTransition` metrics:
 
-       - :serverstatus:`metrics.repl.stepDown.userOperationsKilled`
+       - :serverstatus:`metrics.repl.stateTransition.userOperationsKilled`
 
-       - :serverstatus:`metrics.repl.stepDown.userOperationsRunning`
+       - :serverstatus:`metrics.repl.stateTransition.userOperationsRunning`
 
    * - :serverstatus:`transactions`