workflow: update ci dependencies

Author: NelsonYong

.github/workflows/ci.yml

@@ -8,15 +8,13 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-      - name: Install pnpm
       - uses: pnpm/action-setup@v2
         with:
           version: 7.9.5
-      - name: Set node
-        uses: actions/setup-node@v3
+      - uses: actions/setup-node@v3
         with:
-          node-version: 18.x
-          cache: pnpm
+          node-version: '16'
+          cache: 'pnpm'
       - name: Install
         run: |
           pnpm install --frozen-lockfile