Update actions/setup-node to v3 in themes-weekly-pull.yml

Co-authored-by: per1234 <accounts@perglass.com>

Author: francescospissu

.github/workflows/themes-weekly-pull.yml

@@ -13,7 +13,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Install Node.js 14.x
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v3
         with:
           node-version: '14.x'
           registry-url: 'https://registry.npmjs.org'