der

x509-cert: adds a serial numbers generator #2580

Job	Run time
build (1.65.0, thumbv7em-none-eabi)	2m 40s
derive (1.65.0)	1m 26s
build (1.65.0, wasm32-unknown-unknown)	2m 47s
derive (stable)	13s
build (stable, thumbv7em-none-eabi)	1m 23s
build (stable, wasm32-unknown-unknown)	1m 26s
test (i686-unknown-linux-gnu, ubuntu-latest, 1.65.0, sudo apt update && sudo apt install gcc-mult...	13m 6s
test (i686-unknown-linux-gnu, ubuntu-latest, stable, sudo apt update && sudo apt install gcc-mult...	10m 27s
test (x86_64-unknown-linux-gnu, ubuntu-latest, 1.65.0)	12m 57s
test (x86_64-unknown-linux-gnu, ubuntu-latest, stable)	9m 54s
minimal-versions / minimal-versions	7m 52s
	1h 4m 11s

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