fix: another non-deterministic join test (#10122)

Author: korowa

datafusion/sqllogictest/test_files/joins.slt

@@ -3627,7 +3627,7 @@ physical_plan
 13)------------ProjectionExec: expr=[1 as c, 3 as d]
 14)--------------PlaceholderRowExec
 
-query IIII
+query IIII rowsort
 SELECT * FROM (
     SELECT 1 as c, 2 as d
     UNION ALL