Log Message:
py-psycopg2: updated to 2.8.3

Psycopg 2.8.3 released

We have released Psycopg 2.8.3, which includes a slight change to the logical \ 
replication.

Choosing the right frequency to send replication feedback messages from the \ 
client to the server was previously the developer's responsibility, with too \ 
many feedback messages being a waste of bandwidth and server resources, too few \ 
slowing down WAL cleanup and possibly preventing a server graceful shutdown.

Psycopg will now make sure that feedback is only sent after a certain period of \ 
time from the previous one, so that the client can simply call send_feedback() \ 
at each message without the fear of overwhelming the server.

For completeness, the changes included in the release are:
* Added interval_status parameter to start_replication() method and other \ 
facilities to send automatic replication keepalives at periodic intervals
* Fixed namedtuples caching introduced in 2.8