Parallelize Stateless (CSV/JSON) File Write Serialization #18276

Job	Run time
Check cargo fmt	40s
cargo check	2m 19s
cargo test (mac)	2m 24s
Verify MSRV	2m 19s
Verify Vendored Code	1m 6s
cargo test (win64)	2m 26s
cargo examples (amd64)	1s
cargo test datafusion-cli (amd64)	1s
clippy	1s
cargo doc	1s
cargo test (amd64)	1s
cargo test hash collisions (amd64)	1s
cargo test doc (amd64)	1s
Run sqllogictest with Postgres runner	1s
cargo test pyarrow (amd64)	1s
verify benchmark results (amd64)	1s
check Cargo.toml formatting	1s
check configs.md is up-to-date	1s
	11m 26s

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