Use the latest espresso dev node

[ImJeremyHe]

Use the latest espresso-dev-node in Espresso tests.
This is quite necessary since we are still testing our code with an outdated version

This PR:

• Unpin the espresso-dev-node version
• Fix an issue that causes the reorg in validation. This was because the goroutine in batch poster didn't check the pending positions and the submitted position before it added one to the queue. In the case where the batch poster processes its task twice while the goroutine in tx-streamer haven't submitted the responding message, duplicated messages would be submitted to hotshot. I do think it is better write the relevent code in batch poster, but it requires a bit refactor and seems not efficient
• Wait for the L1 node a bit in tests. This seems a potential issue in espresso dev node. If we don't do this, espresso-dev-node will miss some leaves, eventually leading to the failure of fetching the merkle proof in batch poster.

Key places to review:

arbnode/transaction_streamer.go

[sveitser]

I do think it is better to write the relevent code in batch poster, but it requires a bit refactor and seems not efficient

Can you leave this as a TODO comment in the code so we don't forget about it?

[sveitser]

LGTM