Implement stakes updater binary for AVS teams

[samlaf]

Eigenlayer is based on a pull model, so AVSs need to pull delegation manager shares to their AVS contracts periodically. We have explored different potential models in this internal document and decided to write a binary that can be run by AVS teams that calls stakeUpdate() on its registry contract once per day, for every operator.

Let's just write a simple binary without infra choices into consideration for now. We can base our implementation off of the avs-churner.

[samlaf]

We're working on this as part of this new repo https://github.com/Layr-Labs/eigensync, so closing here.