[net] Construct addrman outside connman

node.context owns the CAddrMan. CConnman holds a reference to
the CAddrMan.

src/net.h

@@ -856,7 +856,7 @@ public:
         m_onion_binds = connOptions.onion_binds;
     }
 
-    CConnman(uint64_t seed0, uint64_t seed1, bool network_active = true);
+    CConnman(uint64_t seed0, uint64_t seed1, CAddrMan& addrman, bool network_active = true);
     ~CConnman();
     bool Start(CScheduler& scheduler, const Options& options);
 
@@ -1130,7 +1130,7 @@ private:
     std::vector<ListenSocket> vhListenSocket;
     std::atomic<bool> fNetworkActive{true};
     bool fAddressesInitialized{false};
-    CAddrMan addrman;
+    CAddrMan& addrman;
     std::deque<std::string> m_addr_fetches GUARDED_BY(m_addr_fetches_mutex);
     RecursiveMutex m_addr_fetches_mutex;
     std::vector<std::string> vAddedNodes GUARDED_BY(cs_vAddedNodes);