tai64

serdect: bump `toml` to v0.8 #1649

Job	Run time
build (1.65.0, thumbv7em-none-eabi)	4m 45s
build (1.65.0, wasm32-unknown-unknown)	4m 42s
build (stable, thumbv7em-none-eabi)	22s
test (1.65.0)	4m 59s
build (stable, wasm32-unknown-unknown)	12s
test (stable)	22s
minimal-versions / minimal-versions	25s
	15m 47s

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