CI: fix security audit (#764) #1381

Job	Run time
set-msrv / set-msrv	5s
minimal-versions / minimal-versions	40s
test (stable)	28s
build (1.85.0, wasm32-unknown-unknown)	20s
test (1.85.0)	31s
build (stable, thumbv7em-none-eabi)	20s
build (1.85.0, thumbv7em-none-eabi)	28s
build (stable, wasm32-unknown-unknown)	13s
	3m 5s

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