chore(deps): bump gunicorn from 20.0.2 to 20.0.3 in /tests/apps/multi
chore(deps): bump gunicorn from 20.0.2 to 20.0.3 in /tests/apps/multi

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 20.0.2 to 20.0.3.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](https://github.com/benoitc/gunicorn/compare/20.0.2...20.0.3)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
claytonbrown/dokku,progrium/dokku,dokku/dokku,progrium/dokku,dokku/dokku,progrium/dokku,progrium/dokku,claytonbrown/dokku,dokku/dokku,claytonbrown/dokku,claytonbrown/dokku,progrium/dokku,progrium/dokku,dokku/dokku,claytonbrown/dokku,dokku/dokku,claytonbrown/dokku,dokku/dokku,dokku/dokku,claytonbrown/dokku,progrium/dokku,dokku/dokku,claytonbrown/dokku,progrium/dokku