bug: connector can not parse datatypes before 1970-01-01

[st1page]

risingwave_connector::parser: failed to parse non-pk column, padding with `NULL` error=Expected type `Some(Timestamp)` but got `i64` for `-2208988800000000000`

It is supported in RisingWave's SQL engine

dev=> select '1900-01-01 00:00:00'::timestamptz;
NOTICE:  Your session timezone is UTC. It was used in the interpretation of timestamps and dates in your query. If this is unintended, change your timezone to match that of your data's with `set timezone = [timezone]` or rewrite your query with an explicit timezone conversion, e.g. with `AT TIME ZONE`.

        timestamptz        
---------------------------
 1900-01-01 00:00:00+00:00
(1 row)

[xiangjinwu]

The correct behavior of debezium parser is to read connect.name (#14703) and invoke one of from_secs / from_millis / from_micros rather than guessing the unit with i64_to_timestamptz.