fix(configs): [DO NOT MERGE] Custom branch for v25 genesis

[sanekmelnikov]

What ❔

This is custom branch for matterlabs/server-v2:v25.1.0.genesis Docker image.

Changes:

• update the values in genesis.yaml, sepolia.yaml, mainnet.yaml to match v25
• make zkstack_cli compile system contracts with hardhat instead of forge

Why ❔

The v25 protocol upgrade was performed using system contracts compiled with Hardhat.
However, since both zkstack and genesis logic use Forge by default, running the process from the main branch results in system contracts being deployed with differing bytecodes. This discrepancy leads to mismatched genesis hashes and failure during the genesis step for the new chains.
As a result, it is currently impossible to perform the genesis of new v25 chains on the ZKsync ecosystems (e.g., Sepolia, Mainnet) directly from the main branch. This branch has been created specifically to perform the genesis step for these environments.

Checklist

• PR title corresponds to the body of PR (we generate changelog entries from PRs).
• Tests for the changes have been added / updated.
• Documentation comments have been added / updated.
• Code has been formatted via zkstack dev fmt and zkstack dev lint.