[BUG] RBF enabled LTC/BCH/BTC transactions missed observation

There was report that RBF enabled LTC transaction doesn't get observed https://discord.com/channels/838986635756044328/838986636665815072/898236704522108938

further investigation find out the check

if c.isRBFEnabled(tx) && tx.Confirmations == 0 {
		c.logger.Info().Msgf("RBF is enabled, ignore tx: %s,confirmation: %d", tx.Hash, tx.Confirmations)
		return types.TxInItem{}, nil
}

It turns out when a block just committed , tx.Confirmation is 0 ,thus cause the tx to be ignored by bifrost