Process-street-tap-postgres

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- Remove unused timestamps in logical replication

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- Make logging customizable

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- Support for jsonb column type

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- Add `break_at_end_lsn` setting
- Add `max_run_seconds` setting
- Only send feedback when `lsn_comitted` has increased
- Remove some incompatible singer tap-postgres code

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- Minor error handling optimization

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- Bump psycopg2 to `2.8.4`
- Rely on psycopg2 to send keep-alive status updates to source