du: disable some benchmarks #1327

Job	Run time
Style/format (ubuntu-latest, feat_os_unix)	28s
Style/Python	7s
Pre-commit hooks	51s
Style/toml	17s
Style/spelling (ubuntu-latest, feat_os_unix)	2m 54s
Style/lint (windows-latest, feat_os_windows)	4m 26s
Style/lint (macos-latest, feat_os_macos)	2m 41s
Style/lint (ubuntu-latest, all, true)	2m 55s
	14m 39s

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