Update GitHub Actions deployment.

Author: Frumple

.github/workflows/deploy.yml

@@ -10,17 +10,19 @@ jobs:
 
     steps:
     - name: Checkout files
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
+    - name: Enable Corepack
+      run: corepack enable
     - name: Setup Node.js
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v4
       with:
-        node-version: 18.x
+        node-version: 20.x
     - name: Install dependencies
-      uses: borales/actions-yarn@v4
+      uses: borales/actions-yarn@v5
       with:
         cmd: install
     - name: Build bundle
-      uses: borales/actions-yarn@v4
+      uses: borales/actions-yarn@v5
       with:
         cmd: build
     - name: Deploy to GitHub Pages