1. remove FE config `enable_array_type`
2. limit the nested depth of array in FE side.
3. Fix bug that when loading array from parquet, the decimal type is treated as bigint
4. Fix loading array from csv(vec-engine), handle null and "null"
5. Change the csv array loading behavior, if the array string format is invalid in csv, it will be converted to null.
6. Remove `check_array_format()`, because it's logic is wrong and meaningless
7. Add stream load csv test cases and more parquet broker load tests
We should prevent insert while value overflow.
1. create table:
`CREATE TABLE test_array_load_test_array_int_insert_db.test_array_load_test_array_int_insert_tb ( k1 int NULL, k2 array<int> NULL ) DUPLICATE KEY(k1) DISTRIBUTED BY HASH(k1) BUCKETS 5`
2. try insert data less than INT_MIN.
`insert into test_array_load_test_array_int_insert_tb values (1005, [-2147483649])`
Before this pr, the insert will success, but the value it not correct.
Co-authored-by: cambyzju <zhuxiaoli01@baidu.com>
