[test] Make PeerManager's rng deterministic in tests

Author: dergoegge

src/test/util/setup_common.cpp

@@ -256,6 +256,7 @@ TestingSetup::TestingSetup(
     m_node.connman = std::make_unique<ConnmanTestMsg>(0x1337, 0x1337, *m_node.addrman, *m_node.netgroupman, Params()); // Deterministic randomness for tests.
     PeerManager::Options peerman_opts;
     ApplyArgsManOptions(*m_node.args, peerman_opts);
+    peerman_opts.deterministic_rng = true;
     m_node.peerman = PeerManager::make(*m_node.connman, *m_node.addrman,
                                        m_node.banman.get(), *m_node.chainman,
                                        *m_node.mempool, peerman_opts);