Convert workflow to LF and use xvfb from the agent

This should work.

Author: TomasHubelbauer

.github/workflows/main.yml

@@ -1,21 +1,20 @@
-name: main
-on: push
-
-jobs:
-  build:
-    strategy:
-      matrix:
-        os: [macos-latest, ubuntu-latest, windows-latest]
-    runs-on: ${{matrix.os}}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Install Node.js
-        uses: actions/setup-node@v1
-        with:
-          node-version: 8.x
-      - run: npm install
-      - name: Run tests
-        uses: GabrielBB/[email protected]
-        with:
-          run: npm test
+name: main
+on: push
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [macos-latest, ubuntu-latest, windows-latest]
+    runs-on: ${{matrix.os}}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Run tests
+        run: |
+          export DISPLAY=":0"
+          xvfb-run --auto-servernum npm test