ci: bump pnpm/action-setup from 2 to 4#3

dependabot[bot] wants to merge 1 commit into

mainOOBE-PROTOCOL/synapse-client-sdk:mainfrom

dependabot/github_actions/pnpm/action-setup-4OOBE-PROTOCOL/synapse-client-sdk:dependabot/github_actions/pnpm/action-setup-4Copy head branch name to clipboard