snice: implement `--no-action` #1838

Job	Run time
cargo test (ubuntu-latest)	1m 7s
cargo test (macOS-latest)	54s
cargo check (macOS-latest)	33s
cargo check (ubuntu-latest)	44s
cargo test (windows-latest)	2m 43s
cargo check (windows-latest)	2m 38s
Test each util separately (windows-latest)	3m 14s
Code Coverage (macos-latest, macos)	4m 5s
Test each util separately (macOS-latest)	57s
Code Coverage (windows-latest, windows)	4m 58s
Test each util separately (ubuntu-latest)	1m 9s
Code Coverage (ubuntu-latest, unix)	2m 10s
	25m 12s

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