build(deps): update psycopg2 requirement from ~=2.9.0 to ~=2.9.9
Updates the requirements on [psycopg2](https://github.com/psycopg/psycopg2) to permit the latest version.
- [Changelog](https://github.com/psycopg/psycopg2/blob/master/NEWS)
- [Commits](https://github.com/psycopg/psycopg2/compare/2.9.6...2.9.9)