fix(server/v2): align default response for filter cmd when handleQuer…

…yP2P

for more info, https://github.com/cosmos/cosmos-sdk/blob/b461a3142af55f96554ab5d99c7e56d63b1be286/baseapp/abci.go#L1127

server/v2/cometbft/query.go

@@ -29,6 +29,7 @@ func (c *consensus[T]) handleQueryP2P(path []string) (*abci.QueryResponse, error
 				return c.idPeerFilter(arg)
 			}
 		}
+		return &abci.QueryResponse{}, nil
 	}
 
 	return nil, errorsmod.Wrap(cometerrors.ErrUnknownRequest, "expected second parameter to be 'filter'")