Improve P2P

[Neylix]

Description

During mining process, there is several request to get a previous transaction or a the while tranaction chain.
Request and mining process have some timeout of 3sec.
But transactions can have a maximum size of 3MB and if the node connection is low (especially in upload), send 3MB can take more time than 3 sec

So to avoid te timeout behavior for low connection speed, we can dynamically adapt the timeout depending on the maximum request size expected.

Fixes poart of #425

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

To simulate low connection, we can update the connection.ex file with this on line 299:

time = trunc(byte_size(msg) / @floor_upload_speed * 1_000)
Process.send_after(from, {ref, {:ok, message}}, time)
# send(from, {ref, {:ok, message}})

and this in top of the file

@floor_upload_speed Application.compile_env!(:archethic, [Message, :floor_upload_speed])

To test with big transaction size we can use Aeweb cli

Transaction will take a lot of time to be validated, but will not fall in timeout due to low speed connection

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules