Add support for podcasting 2.0 feature "podping"
Is your feature request related to a problem? Please describe
Podping is a feature that allows changes to a feed to be implemented very quickly, as it tells podcast apps to that an update has occurred, instead of waiting for the app to poll the RSS feed just to see if there are any changes. This means that new episodes can be seen in modern players as soon as they are published (instead of waiting for a poll frequency).
Describe the solution you'd like
Add support for podping as shown here:
https://github.com/Podcastindex-org/podping.cloud
A "ping" should be sent on any change to the feed like a new item, updating artwork, etc.
Describe alternatives you've considered
None
Additional context
This will also provide the basis for supporting the "live item" tag - another Podcasting 2.0 feature.