Update ha/lock.go

Co-authored-by: Luiz Aoqui <luiz@hashicorp.com>

ha/lock.go

@@ -111,7 +111,7 @@ func (hc *HALockController) maintainLease(ctx context.Context) error {
 			hc.logger.Debug("renewing lease")
 			err := hc.lock.Renew(ctx)
 			if err != nil {
-				return err
+				return fmt.Errorf("failed to renew lock lease: %v", err)
 			}
 		}
 	}