Bump serde from 1.0.208 to 1.0.209 #350

Job	Run time
Build macOS universal wheel (3.8)	1m 13s
Build Linux x86_64 wheel (3.8)	1m 22s
Build macOS universal wheel (3.9)	46s
Build Linux wheel (3.8, linux/arm64, aarch64-unknown-linux-gnu)	4m 18s
Build sdist	23s
Build Linux x86_64 wheel (3.9)	1m 21s
Build macOS universal wheel (3.10)	58s
Build Linux x86_64 wheel (3.10)	1m 23s
Build macOS universal wheel (3.11)	46s
Build Linux wheel (3.8, linux/arm/v7, armv7-unknown-linux-gnueabihf, --no-default-features)	4m 52s
Build Linux x86_64 wheel (3.11)	1m 31s
Build macOS universal wheel (3.12)	1m 7s
Build Linux wheel (3.9, linux/arm64, aarch64-unknown-linux-gnu)	3m 50s
Build Windows wheel (3.8)	1m 44s
Build Linux x86_64 wheel (3.12)	1m 26s
Build Linux wheel (3.9, linux/arm/v7, armv7-unknown-linux-gnueabihf, --no-default-features)	4m 39s
Build Windows wheel (3.9)	1m 10s
Build Linux wheel (3.10, linux/arm64, aarch64-unknown-linux-gnu)	3m 14s
Build Linux wheel (3.10, linux/arm/v7, armv7-unknown-linux-gnueabihf, --no-default-features)	4m 15s
Build Windows wheel (3.10)	1m 32s
Build Linux wheel (3.11, linux/arm64, aarch64-unknown-linux-gnu)	3m 15s
Build Windows wheel (3.11)	1m 26s
Build Linux wheel (3.11, linux/arm/v7, armv7-unknown-linux-gnueabihf, --no-default-features)	4m 16s
Build Windows wheel (3.12)	1m 31s
Build Linux wheel (3.12, linux/arm64, aarch64-unknown-linux-gnu)	3m 9s
Build Linux wheel (3.12, linux/arm/v7, armv7-unknown-linux-gnueabihf, --no-default-features)	4m 7s
Release	0s
	59m 34s

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