build(deps): bump docker/setup-buildx-action from 2 to 3 #488

Job	Run time
Check DockerHub secrets exist	6s
test (debos-arch)	1m 26s
test (debos-bookworm)	1m 6s
test (debos-bullseye)	1m 11s
test (debos-trixie)	1m 15s
Build Docker container	6m 28s
Run unit tests	2m 51s
recipes on nofakemachine	1m 6s
debian (amd64) on nofakemachine	1m 32s
debian (arm64) on nofakemachine	2m 42s
debian (armhf) on nofakemachine	3m 39s
recipes on qemu	1m 4s
debian (amd64) on qemu	7m 45s
debian (arm64) on qemu	33m 6s
debian (armhf) on qemu	34m 52s
recipes on uml	50s
debian (amd64) on uml	5m 35s
debian (arm64) on uml	9m 33s
debian (armhf) on uml	24m 51s
arch on arch	12m 45s
partitioning on qemu	1m 7s
apertis on uml	7m 8s
partitioning on uml	1m 12s
allgreen	3s
Publish to GHCR	2m 51s
Publish to DockerHub	0s
	2h 46m 4s

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