test: update new test which is part of Nov 20th upgrade, because the SanityCheck plan patch (to turn it off) makes the output result sort nondeterministic

Author: wiedld

datafusion/sqllogictest/test_files/union.slt

@@ -769,8 +769,8 @@ SELECT NULL WHERE FALSE;
 query error DataFusion error: type_coercion\ncaused by\nError during planning: Incompatible inputs for Union: Previous inputs were of type List(.*), but got incompatible type List(.*) on column 'x'
 SELECT make_array(2) x UNION ALL SELECT make_array(now()) x;
 
-query ? rowsort
-select make_array(arrow_cast(2, 'UInt8')) x UNION ALL SELECT make_array(arrow_cast(-2, 'Int8')) x;
+query ?
+select make_array(arrow_cast(2, 'UInt8')) x UNION ALL SELECT make_array(arrow_cast(-2, 'Int8')) x order by 1;
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