fold:Improve fold bench data generation #13055

Job	Run time
Style/format (ubuntu-latest, feat_os_unix)	15s
Style/lint (windows-latest, feat_os_windows)	1m 59s
Style/lint (ubuntu-latest, all, true)	1m 32s
Style/toml	14s
Style/spelling (ubuntu-latest, feat_os_unix)	1m 23s
Style/lint (macos-latest, feat_os_macos)	53s
Style/Python	6s
Pre-commit hooks	20s
	6m 42s

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