chore(deps): update docker/build-push-action digest to 48aba3b (#132) #456

Job	Run time
Build kmods (41, nvidia-open, x64)	4m 38s
Build kmods (stable, nvidia-open, x64)	5m 21s
manifest (41, nvidia-open)	8s
manifest (stable, nvidia-open)	10s
check	1s
	10m 18s

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