ci: bump docker/setup-buildx-action from 3 to 4#131

raffaelschneider merged 1 commit intomainzentinelproxy/zentinel:mainfrom

dependabot/github_actions/docker/setup-buildx-action-4zentinelproxy/zentinel:dependabot/github_actions/docker/setup-buildx-action-4Copy head branch name to clipboard