chore(internal): run example files in CI (#1357)

Author: stainless-app[bot]

.github/workflows/ci.yml

@@ -64,4 +64,22 @@ jobs:
 
       - name: Run tests
         run: ./scripts/test
+  examples:
+    name: examples
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+      - name: Install dependencies
+        run: |
+          yarn install
 
+      - env: 
+          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+        run: |
+            yarn tsn examples/demo.ts