Fix query syntax in group_by.slt test file

Author: xiedeyantu

datafusion/sqllogictest/test_files/group_by.slt

@@ -5209,7 +5209,7 @@ create table duplicate_grouping_sets(deptno int, job varchar, sal int, comm int)
 (10, 'CLERK', 1300, null),
 (20, 'MANAGER', 3000, null);
 
-query IT?I?I?III
+query ITIIIII
 select deptno, job, sal, sum(comm), grouping(deptno), grouping(job), grouping(sal)
 from duplicate_grouping_sets
 group by grouping sets ((deptno, job), (deptno, sal), (deptno, job))