Set min version of serde to 1.0.184 #299

Job	Run time
build (1.60.0, thumbv7em-none-eabi)	2m 5s
build (1.60.0, wasm32-unknown-unknown)	2m 31s
build (stable, thumbv7em-none-eabi)	26s
build (stable, wasm32-unknown-unknown)	45s
cross (aarch64-unknown-linux-gnu, 1.60.0)	3m 2s
cross (aarch64-unknown-linux-gnu, stable)	45s
cross (powerpc-unknown-linux-gnu, 1.60.0)	3m 13s
cross (powerpc-unknown-linux-gnu, stable)	48s
test (i686-unknown-linux-gnu, ubuntu-latest, 1.60.0, sudo apt update && sudo apt install gcc-mult...	2m 39s
test (x86_64-unknown-linux-gnu, ubuntu-latest, 1.60.0)	2m 4s
test (x86_64-pc-windows-msvc, windows-latest, 1.60.0)	4m 28s
test (x86_64-apple-darwin, macos-latest, 1.60.0)	2m 37s
minimal-versions / minimal-versions	31s
	25m 54s

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