Incorporate Cargo Audit into CI (#102) #22

Job	Run time
Check (stable, ubuntu-latest)	11s
Check (stable, macOS-latest)	15s
Check (stable, windows-latest)	1m 1s
Check (beta, ubuntu-latest)	15s
Check (beta, macOS-latest)	22s
Check (beta, windows-latest)	39s
Check (nightly, ubuntu-latest)	15s
Check (nightly, macOS-latest)	19s
Check (nightly, windows-latest)	36s
Test Suite (stable, ubuntu-latest)	16s
Clippy (stable)	16s
Test Suite (stable, macOS-latest)	18s
Clippy (beta)	18s
Test Suite (stable, windows-latest)	55s
Clippy (nightly)	18s
Test Suite (beta, ubuntu-latest)	19s
Test Suite (beta, macOS-latest)	25s
Test Suite (beta, windows-latest)	46s
Test Suite (nightly, ubuntu-latest)	19s
Test Suite (nightly, macOS-latest)	22s
Test Suite (nightly, windows-latest)	44s
	9m 9s

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