[skip-release] Update github-actions

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout (changelog)	action	digest	9c091bb → 3d3c42e
docker/build-push-action (changelog)	action	digest	2634353 → 10e90e3
docker/setup-buildx-action (changelog)	action	digest	e468171 → 8d2750c

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