Refactor build workflow for Node.js 20

Author: PiSaucer

.github/workflows/build.yml

@@ -2,28 +2,39 @@ name: gh-build
 
 on:
   push:
-    branches: [ main ]
+    branches:
+      - main
+
   pull_request:
-    branches: [ main ]
+    branches:
+      - main
+
+permissions:
+  contents: write
 
 jobs:
   build:
     runs-on: ubuntu-latest
+
     steps:
-    - uses: actions/checkout@v3
-    
-    - name: Use Node.js 14.x
-      uses: actions/setup-node@v3
-      with:
-        node-version: 14.x
-    
-    - name: Build
-      run: |
-        yarn install
-        yarn build
-
-    - name: Deploy 🚀
-      uses: JamesIves/github-pages-deploy-action@v4.2.3
-      with:
-        branch: gh-pages # The branch the action should deploy to.
-        folder: build # The folder the action should deploy.
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v6
+        with:
+          node-version: "20"
+          cache: "yarn"
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Build
+        run: yarn build
+
+      - name: Deploy to GitHub Pages
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        uses: JamesIves/github-pages-deploy-action@v4
+        with:
+          branch: gh-pages
+          folder: build