ci: set playwright working directory to examples/esm

Author: thewtex

.github/workflows/playwright.yml

@@ -1,11 +1,14 @@
 name: Playwright Tests
 on:
   push:
-    branches: [ main, master ]
+    branches: [ main ]
   pull_request:
-    branches: [ main, master ]
+    branches: [ main ]
 jobs:
   test:
+    defaults:
+      run:
+        working-directory: ./examples/esm
     timeout-minutes: 60
     runs-on: ubuntu-latest
     steps: