PG INET loses a subnet during CDC

[ilidemi]

Steps to reproduce:

1. create table test_inet(id serial primary key, i inet);
2. insert into test_inet(i) values('10.0.0.0/32'::inet);
3. Create a mirror from this PG into ClickHouse
4. insert into test_inet(i) values('10.0.0.0/32'::inet);
5. First value is 10.0.0.0/32, second becomes 10.0.0.0

In PostgresConnector.parseFieldFromPostgresOID the value is already a string without a subnet.