Bump serde from 1.0.200 to 1.0.201 #924

Job	Run time
coverage	3m 2s
Rustfmt	30s
clippy	1m 38s
Check	1m 35s
Test Suite (self-hosted, linux, x64, intel, self-hosted-linux-intel)	3m 3s
Test Suite (self-hosted, linux, arm64, --cfg=aes_armv8)	12m 39s
Test Suite (self-hosted, macos, arm64, --cfg=aes_armv8)	3m 47s
Test Suite (macos-13, stable)	5m 57s
Test Suite (windows-2019)	8m 36s
Build library (self-hosted, linux, x64, intel, self-hosted-linux-intel, libpost.so, libpost.a, li...	2m 32s
Build library (self-hosted, linux, arm64, libpost.so, libpost.a, --cfg=aes_armv8, linux-arm64)	5m 15s
Build library (self-hosted, macos, arm64, libpost.dylib, libpost.a, --cfg=aes_armv8, macos-m1)	3m 3s
Build library (macos-13, libpost.dylib, libpost.a, macos)	4m 7s
Build library (windows-2019, post.dll, post.lib, windows)	8m 40s
Publish release	0s
	1h 4m 24s

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