Bump psycopg[binary] from 3.1.19 to 3.2.1 in /requirements

Bumps [psycopg[binary]](https://github.com/psycopg/psycopg) from 3.1.19 to 3.2.1.
- [Changelog](https://github.com/psycopg/psycopg/blob/master/docs/news.rst)
- [Commits](psycopg/psycopg@3.1.19...3.2.1)

---
updated-dependencies:
- dependency-name: psycopg[binary]
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements/postgres.txt

@@ -1 +1 @@
-psycopg[binary]==3.1.19
+psycopg[binary]==3.2.1