Normalize expected output for columnar_test_helpers

Run ci/normalize_expected.sh on columnar_test_helpers.out to satisfy
check-style formatting requirements.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: d89d1f43-18ea-4405-bd1b-5c3129e391a9

Author: ihalatci

src/test/regress/expected/columnar_test_helpers.out

@@ -158,22 +158,22 @@ AS 'citus', $$test_columnar_metadata_xmin_aborted$$;
 -- determine the status without consulting pg_xact.
 SELECT test_columnar_metadata_xmin_aborted('2147485000'::xid, true, false)
        AS committed_xmin_aborted;
- committed_xmin_aborted 
-------------------------
+ committed_xmin_aborted
+---------------------------------------------------------------------
  f
 (1 row)
 
 SELECT test_columnar_metadata_xmin_aborted('2147485000'::xid, false, true)
        AS invalid_xmin_aborted;
- invalid_xmin_aborted 
-----------------------
+ invalid_xmin_aborted
+---------------------------------------------------------------------
  t
 (1 row)
 
 SELECT test_columnar_metadata_xmin_aborted('2147485000'::xid, true, true)
        AS frozen_xmin_aborted;
- frozen_xmin_aborted 
----------------------
+ frozen_xmin_aborted
+---------------------------------------------------------------------
  f
 (1 row)