Update psycopg to 3.1.20

[pyup-bot]

This PR updates psycopg[c] from 3.1.19 to 3.1.20.

Changelog

3.1.20

^^^^^^^^^^^^^^

- Use the simple query protocol to execute COMMIT/ROLLBACK when possible.
This should make querying the PgBouncer admin database easier
(:ticket:`820`).
- Avoid unneeded escaping checks and memory over-allocation in text copy
(:ticket:`829`).
- Bundle binary package with OpenSSL 3.3.x (:ticket:`847`).

Links

• PyPI: https://pypi.org/project/psycopg
• Changelog: https://data.safetycli.com/changelogs/psycopg/
• Homepage: https://psycopg.org/psycopg3/

[pyup-bot]

Closing this in favor of #5179