ci: update checkout and setup-node to @v4

Author: notmandatory

.github/workflows/build.yml

@@ -17,9 +17,9 @@ jobs:
     steps:
       # Checkout and setup
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: 16
       # Install and build
@@ -35,8 +35,8 @@ jobs:
           publish_dir: ./docs/.vuepress/dist
           github_token: ${{ secrets.GITHUB_TOKEN }}
           cname: bitcoindevkit.org
-          user_name: 'github-actions[bot]'
-          user_email: 'github-actions[bot]@users.noreply.github.com'
+          user_name: "github-actions[bot]"
+          user_email: "github-actions[bot]@users.noreply.github.com"
       # Run linkcheck, propagate linkcheck failure through grep pipe
       - name: Linkcheck
         run: set -o pipefail; npm run linkcheck 2>/dev/null | grep "Getting links from\|BROKEN"