Bump CI actions to v5 and Node 22 in publish workflow

actions/checkout@v4 -> @v5, actions/setup-node@v4 -> @v5 (Node 24 runtime), node-version 20 -> 22 to clear the Node 20 deprecation warning.

Author: ljoy913

.github/workflows/publish.yml

@@ -29,12 +29,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
-          node-version: 20
+          node-version: 22
           registry-url: https://registry.npmjs.org
 
       - name: Install dependencies