fix: Update playwright.yml (#555)

Adds log output to browser install section, to determine why browser caching is not working as expected.

Author: willum070

.github/workflows/playwright.yml

@@ -104,6 +104,9 @@ jobs:
 
       - name: Install Playwright browsers with OS dependencies
         run: npx playwright install --with-deps
+        env:
+          DEBUG: pw:install # Enable Playwright's own install verbose logging
+          PLAYWRIGHT_BROWSERS_PATH: ~/.cache/ms-playwright # Explicitly set, though it's the default on Linux
 
       - name: Run All Playwright Tests
         run: npx playwright test e2e/samples.spec.ts