Fix other broken test

tests/testthat/test-pkg-duckdb.R

@@ -359,14 +359,13 @@ test_that("duckdb translation for n_distinct works", {
 test_that("duckdb translation for round works", {
   skip_if_not(has_duckdb_with_substrait())
 
-  # DuckDB is ignoring the rounding strategy - need to check if it even can implement
-  # alternatives? Should we just do this one but warn??
   expect_equal(
     tibble::tibble(x = c(1, 2.34, 3.456, 4.5)) %>%
       duckdb_substrait_compiler() %>%
       substrait_project(x, y = round(x)) %>%
       dplyr::collect(),
     tibble::tibble(
+      x = c(1, 2.34, 3.456, 4.5),
       y = c(1, 2, 3, 5)
     )
   )