Bump psycopg2-binary from 2.8.3 to 2.8.4

Bumps [psycopg2-binary](https://github.com/psycopg/psycopg2) from 2.8.3 to 2.8.4.
- [Release notes](https://github.com/psycopg/psycopg2/releases)
- [Changelog](https://github.com/psycopg/psycopg2/blob/master/NEWS)
- [Commits](https://github.com/psycopg/psycopg2/commits)

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

setup.py

@@ -45,7 +45,7 @@ setup(
         'geoalchemy2==0.6.3',
         'shapely==1.6.4.post2',
         'ogn-client==0.9.5',
-        'psycopg2-binary==2.8.3',
+        'psycopg2-binary==2.8.4',
         'mgrs==1.3.5',
         'xmlunittest==0.5.0',
         'tqdm==4.36.1',