Update ci.yml

Author: berviantoleo

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-24.04
     strategy:
       matrix:
-        node: ['20.x', '22.x']
+        node: ['18.x']
     steps:
       - name: Checkout 🛎
         uses: actions/checkout@v4