chore: cargo update to refresh dependencies and resolve advisories

Resolves the following advisories via transitive bumps in Cargo.lock:
- rustls-webpki < 0.103.12: name constraint parsing issues
  ([RUSTSEC-2026-0098], [RUSTSEC-2026-0099]).
- rand unsound with custom logger ([RUSTSEC-2026-0097]).

Remaining known warnings (not fixable without upstream changes):
- bincode 1.3.3 unmaintained ([RUSTSEC-2025-0141]) via pg-core 0.3.1.
- rustls-pemfile 1.0.4 unmaintained ([RUSTSEC-2025-0134]) via
  irma 0.2.1 -> reqwest 0.11.

Build: clean (release). Tests: 0 tests (unit-test-free crate).

Author: dobby-coder[bot]