bench: enable list layout for SQL benchmarks

Set VORTEX_EXPERIMENTAL_LIST_LAYOUT=1 at the job level so statpopgen data
is written and queried with ListLayout. Revert before merge if list layout
should stay off for the develop baseline.

Signed-off-by: Matt Katz <mhkatz97@gmail.com>

Author: mhk197

.github/workflows/sql-benchmarks.yml

@@ -513,6 +513,7 @@ jobs:
     env:
       VORTEX_EXPERIMENTAL_PATCHED_ARRAY: "1"
       FLAT_LAYOUT_INLINE_ARRAY_NODE: "1"
+      VORTEX_EXPERIMENTAL_LIST_LAYOUT: "1"
       # Makes python output nicer
       COLUMNS: 120
     strategy: