Potential fix for code scanning alert no. 32: Workflow does not contain permissions

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

.github/workflows/playwright.yml

@@ -1,4 +1,6 @@
 name: Playwright Tests
+permissions:
+  contents: read
 on:
   push:
     branches: