CI: doc with `--no-deps` (#67) #153

Job	Run time
minimal-versions	0s
set-msrv / set-msrv	3s
cross (powerpc-unknown-linux-gnu, 1.74.0)	1m 12s
no_std (1.74.0, thumbv7em-none-eabi)	18s
cross (powerpc-unknown-linux-gnu, stable)	59s
test (1.74.0)	44s
no_std (1.74.0, wasm32-unknown-unknown)	19s
test (stable)	48s
no_std (stable, thumbv7em-none-eabi)	12s
no_std (stable, wasm32-unknown-unknown)	13s
	4m 48s

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