feat(rln): trustless root onchain

[rymnc]

Description

Strips BinaryIMT of the restriction with storage. Root is now calculated in memory, and has parity with zerokit. This way, we have cheap registrations and the root access is free, win-win!

Describe the changes made in your pull request here.

Checklist

Ensure you completed all of the steps below before submitting your pull request:

• [ ] Added natspec comments?
• [x] Ran forge snapshot?
• [x] Ran pnpm lint?
• [x] Ran forge test?
• [x] Ran pnpm verify?

[rymnc]

@alrevuelta new deployment - 5ef581e