Update to wsts 12

[xoloki]

Description

Update the wsts dependency to 12.0.0

Closes #1162, closes #1166, and closes #1167

Changes

Testing Information

Checklist:

• I have performed a self-review of my code
• My changes generate no new warnings
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[matteojug]

sBTC side:

• We can remove SignerStateWrapper and PartyStateWrapper now that they implement eq (in https://github.com/stacks-network/sbtc/blob/main/signer/src/proto/convert.rs#L1802-L1834) and move the tests in convert_protobuf_type3 to convert_protobuf_type2

WSTS side:

1. in check_public_shares: maybe switch the order of the checks (first len, then verify)? I'm not sure if verify does something bad if the poly len is wrong
2. make_shared_secret_from_key (calling ansi_x963_derive_key) generates a different key now because of the counter and the order of hash updates, is it fine (wrt backward compatibility with data already generated)? Does this makes this a breaking protocol change (ie, if signers are running different versions can they still interact as expected)?
3. maybe nit: fn gen<RNG: RngCore + CryptoRng>(rng: &mut RNG) -> Scalar: as this don’t use a secret, doing the generation as in 4.1 (see comment) doesn’t seem to give any better guarantees: if the rng is a bad one, this will still generate bad nonces