Bump actions/checkout from v2.3.2 to v2.3.4#2

dependabot[bot] wants to merge 1 commit intomasterapattin03/react-firebase-admin-test:masterfrom

dependabot/github_actions/actions/checkout-v2.3.4apattin03/react-firebase-admin-test:dependabot/github_actions/actions/checkout-v2.3.4Copy head branch name to clipboard