chore: Update workflows to cache dependencies (#2083)

.github/workflows/e2e-test.yml

@@ -8,12 +8,24 @@ jobs:
       github.event_name == 'deployment_status' &&
       github.event.deployment_status.state == 'success'
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [16.x]
+
     steps:
       - uses: actions/checkout@v3
+
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: npm
+
       - name: Install dependencies
         run: npm ci
         env:
           CI: true
+
       - name: Run end-to-end tests.
         run: npm run test:e2e
         env: