ci: add exit flag for mocha e2e env

.github/workflows/ci.yaml

@@ -3,19 +3,6 @@ name: Build and release
 on: [push]
 
 jobs:
-  test:
-    strategy:
-      matrix:
-        os: [macos-latest, ubuntu-latest, windows-latest]
-    runs-on: ${{ matrix.os }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Run headless test
-        uses: GabrielBB/xvfb-action@v1
-        with:
-          working-directory: ./ #optional
-          run: npm run e2e
   build:
     runs-on: ubuntu-latest
 
@@ -28,7 +15,7 @@ jobs:
       - run: npm install
       - run: npm test
       - run: sudo apt-get install xvfb
-      #- run: xvfb-run --auto-servernum npm run e2e
+      - run: xvfb-run --auto-servernum npm run e2e
       - run: npm run build:prod
         env:
           CI: true