Bump psycopg2cffi from 2.7.7 to 2.8.1
Bump psycopg2cffi from 2.7.7 to 2.8.1

Bumps [psycopg2cffi](https://github.com/chtd/psycopg2cffi) from 2.7.7 to 2.8.1.
- [Release notes](https://github.com/chtd/psycopg2cffi/releases)
- [Commits](https://github.com/chtd/psycopg2cffi/compare/2.7.7...2.8.1)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
gpodder/mygpo,gpodder/mygpo,gpodder/mygpo,gpodder/mygpo