node: Relax `routes_to` test function

We were being too strict by requiring that no routes existed that
weren't passed into the function. This isn't really useful for testing,
since we're more interested in checking that certain routes are there,
rather than testing that *only* those routes are there.

radicle-node/src/test/environment.rs

@@ -227,10 +227,7 @@ impl<G: Signer + cyphernet::Ecdh> NodeHandle<G> {
 
             for (rid, nid) in self.routing() {
                 if !remaining.remove(&(rid, nid)) {
-                    panic!(
-                        "Node::routes_to: unexpected route for {}: ({rid}, {nid})",
-                        self.id
-                    );
+                    log::debug!(target: "test", "Found unexpected route for {}: ({rid}, {nid})", self.id);
                 }
             }
             if remaining.is_empty() {