github-action: use actions/attest (#2570) #463

Job	Run time
packages	15s
build-distribution	10s
publish-lambda-layers	7s
publish-docker (Dockerfile.wolfi)	52s
test / run-if-disabled	3s
publish-docker (Dockerfile)	54s
test / test	-1s
publish-pypi	34s
github-draft	0s
notify	5s
	2m 59s

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