chore(ci): update node-version to 20

Author: dean-journeyapps

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
           cache: 'npm'
       - name: Install dependencies
         run: npm ci