update testing

Author: chenxsan

.github/workflows/testing.yml

@@ -69,7 +69,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        node-version: [18.x]
+        node-version: [16.x]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
@@ -81,7 +81,5 @@ jobs:
           cache: yarn
 
       - run: yarn
-      - run: yarn cypress install
-      - run: yarn cypress verify
       - run: yarn build
       - run: yarn cypress:ci