Pin upper version of serde to <1.0.172 #404

Job	Run time
aarch64 (aarch64-unknown-linux-gnu, 1.60.0)	2m 41s
aarch64 (aarch64-unknown-linux-gnu, stable)	1m 0s
cross (powerpc-unknown-linux-gnu, 1.60.0)	2m 28s
cross (powerpc-unknown-linux-gnu, stable)	46s
build (1.60.0, armv7a-none-eabi)	2m 7s
build (1.60.0, thumbv7em-none-eabi)	2m 3s
build (1.60.0, wasm32-unknown-unknown)	1m 59s
build (stable, armv7a-none-eabi)	7s
build (stable, thumbv7em-none-eabi)	6s
build (stable, wasm32-unknown-unknown)	8s
test (i686-unknown-linux-gnu, ubuntu-latest, 1.60.0, sudo apt update && sudo apt install gcc-mult...	2m 33s
test (i686-unknown-linux-gnu, ubuntu-latest, stable, sudo apt update && sudo apt install gcc-mult...	57s
test (x86_64-unknown-linux-gnu, ubuntu-latest, 1.60.0)	2m 43s
test (x86_64-unknown-linux-gnu, ubuntu-latest, stable)	34s
test (x86_64-apple-darwin, macos-latest, 1.60.0)	2m 31s
test (x86_64-apple-darwin, macos-latest, stable)	35s
test (x86_64-pc-windows-msvc, windows-latest, 1.60.0)	4m 35s
test (x86_64-pc-windows-msvc, windows-latest, stable)	1m 44s
minimal-versions / minimal-versions	1m 13s
	30m 50s

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