Bump psycopg2 from 2.9.8 to 2.9.9

Bumps [psycopg2](https://github.com/psycopg/psycopg2) from 2.9.8 to 2.9.9.
- [Changelog](https://github.com/psycopg/psycopg2/blob/master/NEWS)
- [Commits](psycopg/psycopg2@2.9.8...2.9.9)

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

Signed-off-by: dependabot[bot] <support@github.com>

requirements/base.txt

@@ -21,7 +21,7 @@ gunicorn==20.1.0
 whitenoise==6.5.0
 
 # Database APIs
-psycopg2==2.9.8
+psycopg2==2.9.9
 
 # Content loading
 verto==1.1.0