Bump psycopg2-binary from 2.9.5 to 2.9.6 in /requirements (#1154)

Bumps [psycopg2-binary](https://github.com/psycopg/psycopg2) from 2.9.5 to 2.9.6.
- [Release notes](https://github.com/psycopg/psycopg2/releases)
- [Changelog](https://github.com/psycopg/psycopg2/blob/master/NEWS)
- [Commits](https://github.com/psycopg/psycopg2/commits/2.9.6)

---
updated-dependencies:
- dependency-name: psycopg2-binary
  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>

Author: dependabot[bot]

requirements/postgres.txt

@@ -1 +1 @@
-psycopg2-binary==2.9.5
+psycopg2-binary==2.9.6