chore: update CI.yml

Author: JackWang032

.github/workflows/CI.yml

@@ -13,7 +13,7 @@ jobs:
         runs-on: ubuntu-latest
         strategy:
             matrix:
-                node-version: [14.x, 16.x]
+                node-version: [18.x]
                 # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
         steps:
             - name: Checkout code