feat(crypto): 256-bit security (256 capacity) for 64-bit poseidon instances

[qalisander]

256-bit capacity (space unaffected by input) for sponge hash function is preferable nowadays

PR Checklist

• Tests
• Documentation
• Changelog

[netlify]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.5%. Comparing base (65d5cfd) to head (9796ae8).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

Files with missing lines	Coverage Δ
lib/crypto/src/poseidon2/instance/babybear.rs	100.0% <100.0%> (ø)
lib/crypto/src/poseidon2/instance/goldilocks.rs	100.0% <100.0%> (ø)

... and 1 file with indirect coverage changes

[bidzyyys]

@qalisander update CHANGELOG please

[qalisander]

will do