move utils into non-mod file (#1398) #4966

Job	Run time
cargo-deny	39s
Shellcheck	5s
Rust Actions (Check/Fmt/Clippy) (ubuntu-latest, check)	1m 54s
Rust Actions (Check/Fmt/Clippy) (ubuntu-latest, fmt)	41s
Test Suite	9m 0s
Rust Actions (Check/Fmt/Clippy) (macos-latest, fmt)	48s
Rust Actions (Check/Fmt/Clippy) (macos-latest, check)	1m 59s
Rust Actions (Check/Fmt/Clippy) (ubuntu-latest, clippy)	2m 17s
Integration Tests	2m 15s
buf	37s
actionlint	6s
Rust Actions (Check/Fmt/Clippy) (macos-latest, clippy)	2m 2s
Kani Proofs (lading_payload)	2m 8s
Kani Proofs (lading_throttle)	54s
action-sha-pin-check	8s
	25m 33s

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