Bump codecov/codecov-action from 3.1.4 to 3.1.5 #657

Job	Run time
Clippy (x86_64-unknown-linux-gnu, false, true)	56s
Build and test (stable, ubuntu-latest, x86_64-unknown-linux-gnu)	1m 7s
Clippy (armv7-unknown-linux-gnueabihf, true, false, -target arm-linux-gnueabihf -mcpu=generic+v7a...	27s
Build and test (beta, ubuntu-latest, x86_64-unknown-linux-gnu)	52s
Clippy (x86_64-unknown-linux-musl, true, false, -target x86_64-linux-musl)	36s
Build and test (msrv, ubuntu-latest, x86_64-unknown-linux-gnu)	1m 38s
Clippy (x86_64-apple-darwin, true, false, -target x86_64-macos-gnu -g)	28s
Build and test (stable, ubuntu-latest, x86_64-unknown-linux-musl)	1m 5s
Format	7s
Build and test (stable, macos-latest, x86_64-apple-darwin)	1m 37s
Validate man pages	7s
Build and test (stable, ubuntu-latest, --all-features, x86_64-unknown-linux-gnu)	1m 4s
Build and test (msrv, ubuntu-latest, --all-features, x86_64-unknown-linux-gnu)	1m 21s
Check unused dependencies	57s
Validate configs	32s
Build and test (stable, ubuntu-latest, --all-features, x86_64-unknown-linux-musl)	1m 8s
Build and test (stable, macos-latest, --all-features, x86_64-apple-darwin)	2m 54s
Audit dependencies	23s
Smoke-test fuzzing targets	4m 18s
Smoke-test fuzzing targets (--all-features)	2m 5s
	23m 42s

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