chore(deps): update stackabletech/actions digest to 5b66858 #57

Job	Run time
Run Cargo Deny (bans licenses sources)	27s
Run Cargo Udeps	6m 38s
Run Cargo Deny (advisories)	26s
Run Rustfmt	20s
Run RustDoc	2m 2s
Run Clippy	1m 40s
Run Cargo Tests	1m 32s
All tests passed	2s
	13m 7s

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