[Rust] Apply clippy and fix typos; · lakesoul-io/LakeSoul@dde1a81

The following actions uses node12 which is deprecated and will be forced to run on node16: actions-rs/toolchain@v1, actions-rs/cargo@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

unused import: `std::collections::HashMap`

unused import: `path::PathBuf`

unused import: `schema_from_metadata_str`

unused import: `util::pretty::print_batches`

unused import: `std::ops::Deref`

unused imports: `Partitioning as LogicalPartitioning`, `Repartition`, `Sort`

unused import: `datafusion::physical_plan::repartition::RepartitionExec`

unused import: `Partitioning`

unused import: `create_physical_sort_expr`

unused import: `LogicalPlanBuilder`

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

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