Bump serde from 1.0.195 to 1.0.196 #658

Job	Run time
Validate configs	28s
Build and test (stable, ubuntu-latest, x86_64-unknown-linux-gnu)	1m 42s
Build and test (beta, ubuntu-latest, x86_64-unknown-linux-gnu)	1m 19s
Build and test (msrv, ubuntu-latest, x86_64-unknown-linux-gnu)	2m 15s
Build and test (stable, ubuntu-latest, x86_64-unknown-linux-musl)	1m 55s
Format	5s
Audit dependencies	24s
Build and test (stable, macos-latest, x86_64-apple-darwin)	3m 18s
Clippy (x86_64-unknown-linux-gnu, false, true)	1m 5s
Build and test (stable, ubuntu-latest, --all-features, x86_64-unknown-linux-gnu)	1m 37s
Clippy (armv7-unknown-linux-gnueabihf, true, false, -target arm-linux-gnueabihf -mcpu=generic+v7a...	1m 12s
Smoke-test fuzzing targets	4m 16s
Build and test (msrv, ubuntu-latest, --all-features, x86_64-unknown-linux-gnu)	2m 44s
Validate man pages	6s
Clippy (x86_64-unknown-linux-musl, true, false, -target x86_64-linux-musl)	56s
Smoke-test fuzzing targets (--all-features)	2m 5s
Clippy (x86_64-apple-darwin, true, false, -target x86_64-macos-gnu -g)	48s
Build and test (stable, ubuntu-latest, --all-features, x86_64-unknown-linux-musl)	1m 50s
Build and test (stable, macos-latest, --all-features, x86_64-apple-darwin)	2m 31s
Check unused dependencies	54s
	31m 30s

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