chore: update lance dependency to v4.0.1

[lance-community]

Summary

• Bump Lance Rust dependencies from 4.0.0 to 4.0.1 in Cargo.toml while preserving existing feature flags.
• Update Cargo.lock from crates.io stable releases only; no [patch.crates-io] Lance overrides are present.
• Includes formatting changes produced by the requested cargo fmt --all run.

Resolver Notes

• Cargo resolved the Lance release family to 4.0.1, including transitive Lance crates such as fsst, lance-bitpacking, lance-datafusion, lance-datagen, lance-encoding, lance-file, and lance-io.
• The lockfile now resolves semver-compatible Arrow/DataFusion crates to Arrow 57.3.0 and DataFusion 52.3.0; no explicit Arrow/DataFusion manifest pin changes were required.

Checks

• cargo fmt --all: passed
• cargo check --manifest-path Cargo.toml: passed after installing protobuf-compiler on the runner for Lance protobuf code generation
• cargo clippy --manifest-path Cargo.toml --all-targets: passed with one non-fatal warning about an unnecessary .to_string() in rust/ffi/session.rs

Triggered by Lance tag refs/tags/v4.0.1.