Remove dependency from cloudflare dns

[cammellos]

There's an issue on ios/android platform where go-mobile can't resolve dns entries, as a quick fix, we hardcoded cloudflare dns

status-go/wakuv2/waku.go

Line 404 in 8593866

discoveredNodes, err := dnsdisc.RetrieveNodes(ctx, enrtreeAddress, dnsdisc.WithNameserver("1.1.1.1"))

, we need to find a way to use the default one (it could be pass as a config, but there should be better options, since that's the only dns entries that fails, while we can generally resolve them).