ci: bump actions/setup-node from 4 to 6#3

dependabot[bot] wants to merge 1 commit intomasterDayclone/opencode-on-autopilot:masterfrom

dependabot/github_actions/actions/setup-node-6Dayclone/opencode-on-autopilot:dependabot/github_actions/actions/setup-node-6Copy head branch name to clipboard