include sequence values in dump

[limpus64]

Recently, upgrading PostgreSQL 13 clusters to PostgreSQL 18, I noticed that the sequence values of the pgagent extension were not transferred to the new installations. This lead to failures running pgagent jobs in the new installations since logging failed due to duplicate primary keys.

In the attachment you will find my solution to the problem: 1. calling pg_extension_config_dump() in an extension update script, and 2.) making the new extension version the default. Please adapt this according to your preferences.

add_seq_data_to_dump.patch