ghaction ui test fix cmd + add cache

.github/workflows/tests.yml

@@ -122,6 +122,14 @@ jobs:
     steps:
     - uses: actions/checkout@v2
 
+    - name: Cache NPM dependencies
+      uses: actions/cache@v2
+      with:
+        path: ~/.npm
+        key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+        restore-keys: |
+          ${{ runner.os }}-node-
+
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1
       with:
@@ -131,4 +139,4 @@ jobs:
       run: npm clean-install
 
     - name: Test
-      run: npm test:ci
+      run: npm run test:ci