creation of "connected socket" returns unsupported

Hi, while troubleshooting performance issues regarding the integration of the boringtun library into a project I am working on, I ran into the following like of code:

https://github.com/cloudflare/boringtun/blob/f672bb6c1e1e371240a8d151f15854687eb740bb/boringtun/src/device/peer.rs#L120

Now, creating a UDP socket of type STREAM (as opposed to DGRAM) is quite likely an error since it doesn't make much sense. This call returns an `IoError(Os { code: 93, kind: Uncategorized, message: "Protocol not supported" }` and the wireguard peer lookup happens on every packet received in the anonymous UDP handler thus reducing throughput to a crawl.

The fix is ofc easy enough (i.e. changing the socket type to `DGRAM`), I tried this myself and performance is as expected greatly improved to at least the same order of magnitude as the cloudflare warp app.. but this is what bugs me: beyond the actual problem, it strikes me as quite unlikely this is the code that cloudflare uses in production; I mean, a bug like this suggests perhaps I am not using the correct branch? Comments welcome. Thanks!