bitswap: `BitSwapNetwork` notifies about connected peers that do not speak Bitswap

[Here](https://github.com/ipfs/boxo/blob/dfd4a53ba828a368cec8d61c3fe12969ac6aa94c/bitswap/network/ipfs_impl.go#L459) we listen and pass newly connected peers to Bitswap Client and Server. However, we do that for all our peers, including those who do not speak Bitswap protocol.

This is not a big problem because we will quickly realize that such peers are unresponsive, but we could still filter them out much earlier. This potentially warrants migrating to Identify libp2p events that now contain the list of protocols the peer supports.