Core/PacketIO: Updated packet structures to 9.2.5

Port From (https://github.com/TrinityCore/TrinityCore/commit/d3c4216de8e1dcb9f62d2fcc1b9b72852e5409c9)

Source/Game/Handlers/SocialHandler.cs

@@ -364,5 +364,13 @@ namespace Game
             Log.outDebug(LogFilter.Network, "WorldSession.HandleSetContactNotesOpcode: Contact: {0}, Notes: {1}", packet.Player.Guid.ToString(), packet.Notes);
             GetPlayer().GetSocial().SetFriendNote(packet.Player.Guid, packet.Notes);
         }
+
+        [WorldPacketHandler(ClientOpcodes.SocialContractRequest)]
+        void HandleSocialContractRequest(SocialContractRequest socialContractRequest)
+        {
+            SocialContractRequestResponse response = new();
+            response.ShowSocialContract = false;
+            SendPacket(response);
+        }
     }
 }