add test case into ci

tests/system-test/fulltest.sh

@@ -21,7 +21,7 @@ python3 ./test.py -f 1-insert/opentsdb_json_taosc_insert.py
 python3 ./test.py -f 1-insert/test_stmt_muti_insert_query.py
 python3 ./test.py -f 1-insert/test_stmt_set_tbname_tag.py
 python3 ./test.py -f 1-insert/alter_stable.py
-#python3 ./test.py -f 1-insert/alter_table.py
+python3 ./test.py -f 1-insert/alter_table.py
 python3 ./test.py -f 1-insert/insertWithMoreVgroup.py
 python3 ./test.py -f 1-insert/table_comment.py
 python3 ./test.py -f 1-insert/time_range_wise.py