Incorporate Cargo Audit into CI #95

Job	Run time
Check (stable, ubuntu-latest)	9s
Check (stable, macOS-latest)	14s
Check (stable, windows-latest)	1m 3s
Check (beta, ubuntu-latest)	15s
Check (beta, macOS-latest)	19s
Check (beta, windows-latest)	43s
Check (nightly, ubuntu-latest)	17s
Check (nightly, macOS-latest)	22s
Check (nightly, windows-latest)	40s
Clippy (stable)	15s
Clippy (beta)	18s
Test Suite (stable, ubuntu-latest)	16s
Clippy (nightly)	17s
Test Suite (stable, macOS-latest)	17s
Test Suite (stable, windows-latest)	1m 4s
Test Suite (beta, ubuntu-latest)	19s
Test Suite (beta, macOS-latest)	25s
Test Suite (beta, windows-latest)	49s
Test Suite (nightly, ubuntu-latest)	20s
Test Suite (nightly, macOS-latest)	21s
Test Suite (nightly, windows-latest)	47s
	9m 30s

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