when `-v2onlyclearnet` is turned on:
- v1 connections to clearnet peers don't work
- v2 connections to clearnet peers work
- v1 conneections to tor/i2p/cjdns peer works
a proxy is used because otherwise NET_UNROUTABLE is the default
network in the tests.
Github-Pull: #30951
Rebased-From: 5e3fa6758ba940384747575df14a75be15bfa629