Find a maintained alternative to rss

[rss](https://www.npmjs.com/package/rss) is the main dependency of the plugin and the last version on npm is five 5 years old. It looks like [the git repository](https://github.com/dylang/node-rss) had some activities recently after more than 5 years of pause, I guess there's a huge backlog of things to fix there, maybe it's time to check if better alternatives exist. Suggestions are welcomed.

Start by reviewing the npm rss dependency and its linked git repository, then survey maintained alternatives that can generate the plugin's RSS feed. Done means documenting a viable replacement and its trade-offs, with a clear recommendation for the plugin.

Written by the indexing model from the issue text.