chore: bump base OS to 'bookworm' #642

Job	Run time
setup	3s
build (armbian/bananapim2zero)	27m 33s
build (armbian/orangepi3lts)	31m 35s
build (armbian/orangepi4lts)	32m 8s
build (armbian/orangepi_zero2)	31m 54s
build (raspberry/rpi32)	44m 10s
build (raspberry/rpi64)	46m 16s
build (raspberry/rpi64-ks)	52m 37s
build (raspberry/rpi64-bullseye)	36m 20s
build (armbian/orangepi4lts-bullseye)	30m 12s
	5h 32m 48s

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