fix(live upgrade): newly live upgraded engine doesn't respect the

disableRevCounter setting

We forget to set disableRevCounter for the newly live upgraded engine.
As a result, the newly live upgraded engine always has disableRevCounter
as `false` even if the volume has disableRevCounter as `true`.

This mismatch prevents the volume from successfully rebuilding a new
replica.

longhorn-9331

Signed-off-by: Phan Le <phan.le@suse.com>

engineapi/instance_manager.go

@@ -728,6 +728,10 @@ func (c *InstanceManagerClient) engineInstanceUpgrade(req *EngineInstanceUpgrade
 		args = append(args, "--replica", GetBackendReplicaURL(addr))
 	}
 
+	if req.Engine.Spec.RevisionCounterDisabled {
+		args = append(args, "--disableRevCounter")
+	}
+
 	if req.EngineCLIAPIVersion >= 6 {
 		args = append(args,
 			"--size", strconv.FormatInt(req.Engine.Spec.VolumeSize, 10),