chore(deps): update docker/setup-buildx-action digest to 8d2750c#8

dnastack-renovate[bot] wants to merge 2 commits into

mainDNAstack/concourse-oci-helm-chart-resource:mainfrom

renovate/docker-setup-buildx-action-digestDNAstack/concourse-oci-helm-chart-resource:renovate/docker-setup-buildx-action-digestCopy head branch name to clipboard