Remove attohttpc as a dependency

[onbjerg]

Describe the feature

attohttpc is required by reth-net-nat through igd-next which is used to find the machine's gateway over UPNP. We need to replace igd-next.

The only place it is used is here:

reth/crates/net/nat/src/lib.rs

Lines 244 to 259 in 9567b25

	async fn resolve_external_ip_upnp() -> Option<IpAddr> {
	search_gateway(Default::default())
	.await
	.map_err(|err| {
	debug!(target: "net::nat", %err, "Failed to resolve external IP via UPnP: failed to find gateway");
	err
	})
	.ok()?
	.get_external_ip()
	.await
	.map_err(|err| {
	debug!(target: "net::nat", %err, "Failed to resolve external IP via UPnP");
	err
	})
	.ok()
	}

Additional context

No response

[github-actions]

This issue is stale because it has been open for 21 days with no activity.