Bump psycopg2 from 2.9.2 to 2.9.3 (#257)

Bumps [psycopg2](https://github.com/psycopg/psycopg2) from 2.9.2 to 2.9.3.
- [Release notes](https://github.com/psycopg/psycopg2/releases)
- [Changelog](https://github.com/psycopg/psycopg2/blob/master/NEWS)
- [Commits](https://github.com/psycopg/psycopg2/commits)

---
updated-dependencies:
- dependency-name: psycopg2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -1,5 +1,5 @@
 Django==4.0.6
-psycopg2==2.9.2
+psycopg2==2.9.3
 gunicorn==20.1.0 #production server
 whitenoise==5.3.0 #serving swagger static files
 djangorestframework==3.12.4