How do I contact the UFW developers to make a feature request? [duplicate]

The link https://packages.ubuntu.com/impish/ufw contains package information and a load of other details, and is a start.

You'll find a bug reports link (where you're wishing to make a feature request).

Please ensure the feature doesn't already exist (esp. if you're using an older release; ie. check in the development release first).

You'll also note the suggestion to

ask a question via Launchpad before contacting the maintainer directly

so I'd suggest doing so (a launchpad question can be converted into bug report/feature-request and will likely carry more weight) ie. https://answers.launchpad.net/