feat: remove ethers completly

[Agilulfo1820]

We do not need ethers dependency, we can use sdk for current uses.

[victhorbi]

This will probably be the full migration to use VeChain-sdk v1.0.0. Right @fabiorigam ?

[Agilulfo1820]

Actually I'm not sure we can 100% remove ethers, because it is used inside contracts/typechain-types

[fabiorigam]

Exactly, I was analyzing it and it's not possible to completely remove ethers. Should we remote it where possible ot leave it as it is?

[victhorbi]

let's discuss during the standup, but we may want to at least migrate to viem. Let's try to be consistent across tools.

[Agilulfo1820]

Yes @fabiorigam there is one place outside typechain data, let's remove it from there and use viem or sdk