cargo: update dependencies

[github-actions]

Automated refresh of the Rust workspace dependencies.

cargo update advanced every dependency within its existing SemVer range, and cargo update --breaking was applied per-crate to also bump the major (SemVer-incompatible) ranges in Cargo.toml. A crate whose major bump can't resolve (for example a renamed feature) is skipped so it never blocks the others.

flake-check is what proves the new versions actually build, so review its result before merging.

Auto-bump, made with Claude Opus 4.8.

Note

Update Cargo dependencies

Updates the Cargo.lock lockfile to resolve dependencies to newer versions.

^{Macroscope summarized ea0a3b4.}