build(deps): bump psycopg from 3.1.17 to 3.1.18 in /backend (#1036)

Bumps [psycopg](https://github.com/psycopg/psycopg) from 3.1.17 to 3.1.18.
- [Changelog](https://github.com/psycopg/psycopg/blob/master/docs/news.rst)
- [Commits](psycopg/psycopg@3.1.17...3.1.18)

---
updated-dependencies:
- dependency-name: psycopg
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

backend/config/requirements/production.txt

@@ -3,7 +3,7 @@
 # General
 # ------------------------------------------------------------------------------
 gunicorn==21.2.0  # https://github.com/benoitc/gunicorn
-psycopg==3.1.17 # https://github.com/psycopg/psycopg
+psycopg==3.1.18 # https://github.com/psycopg/psycopg
 
 # Django
 # ------------------------------------------------------------------------------