M1 #4: Add missing model types for new Deribit API fields

[joaquinbejar]

Summary

Update all dependency versions to their latest compatible releases.

Changes

• tokio: 1.47 → 1.50
• serial_test: 3.2 → 3.4 (dev dependency)
• Cargo.lock: Updated all transitive dependencies

Note: reqwest 0.13 and rand 0.10 were already updated via merged Dependabot PRs (#13, #14).

Testing

• Unit tests pass (cargo test --all-features)
• make lint-fix passes
• make pre-push passes

Checklist

• All public items have /// documentation
• No warnings from cargo clippy --all-targets --all-features -- -D warnings
• cargo fmt --all --check passes
• No .unwrap(), .expect(), or panics in library code

Closes #3

[codecov-commenter]

Codecov Report

❌ Patch coverage is 96.61017% with 2 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/model/market_data.rs	96.61%	2 Missing ⚠️

Files with missing lines	Coverage Δ
src/model/market_data.rs	96.42% <96.61%> (+0.20%)	⬆️

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