perf: idempotent_dir for dataset generation #28284

Job	Run time
Python (lint)	39s
lint-toml	7s
Rust (docs)	2m 14s
Python (test)	2m 18s
Rust build (all-features)	1m 55s
Rust build (wasm32 with default features)	44s
Public API lock files	1m 2s
validate-workflow-yaml	7s
Rust build (default features)	1m 42s
C API test build	34s
Rust build (with tokio dispatcher)	52s
License Check and Audit Check (advisories)	55s
Java	2m 22s
Rust tests (linux-arm64)	2m 17s
WASM integration smoke test	2m 11s
License Check and Audit Check (bans licenses sources)	47s
C++ build	58s
Rust (lint, no default)	1m 28s
Rust (lint)	1m 53s
Check generated source files are up to date	42s
Check build with minimal dependencies	1m 18s
Rust tests (windows-x64)	5m 12s
SQL logic tests	1m 36s
C/C++ (lint)	6s
	33m 59s

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