Add playwright to dev-dependencies.

Author: onurtemizkan

dev-packages/e2e-tests/test-applications/supabase-nextjs/package.json

@@ -29,6 +29,7 @@
     "typescript": "4.9.5"
   },
   "devDependencies": {
+    "@playwright/test": "~1.50.0",
     "@sentry-internal/test-utils": "link:../../../test-utils",
     "eslint": "8.34.0",
     "eslint-config-next": "14.2.15"