Current project status

It seems that this project is currently not maintained at all even though there are lots of [dependent projects](https://deps.dev/go/github.com%2Fgoogle%2Fgopacket/v1.1.19/dependents) (including some rather 'well known' companies like Uber, Weaveworks, Cilium, DataDog, Elastic...) and very interesting contributions like e.g. #911 and many more.

Also with Go 1.18 in place updates to at least Go 1.13 to improve error handling and such would make sense and most likely not break anything anymore.

So...what to do? It seems like @gconnell hasn't responded anymore to anything since ~1y and apparently nobody else has taken over so far ( @google-ospo-team anyone?). It would be a shame to have this project abandoned but having it orphaned and unmaintained could be even worse.