build(deps): bump docker/setup-buildx-action from 2 to 3 #489

Job	Run time
Check DockerHub secrets exist	2s
test (debos-arch)	1m 22s
test (debos-bookworm)	1m 23s
test (debos-bullseye)	57s
test (debos-trixie)	1m 18s
Build Docker container	6m 5s
Run unit tests	2m 25s
recipes on nofakemachine	1m 3s
debian (amd64) on nofakemachine	1m 21s
debian (arm64) on nofakemachine	3m 16s
debian (armhf) on nofakemachine	2m 50s
recipes on qemu	1m 2s
debian (amd64) on qemu	10m 9s
debian (arm64) on qemu	33m 44s
debian (armhf) on qemu	34m 27s
recipes on uml	1m 3s
debian (amd64) on uml	4m 59s
debian (arm64) on uml	9m 51s
debian (armhf) on uml	17m 59s
arch on arch	12m 34s
partitioning on qemu	1m 12s
apertis on uml	7m 13s
partitioning on uml	57s
allgreen	3s
Publish to DockerHub	0s
Publish to GHCR	0s
	2h 37m 15s

Provide feedback