fix(docs): sync @playwright/test to match playwright-web-flake 1.56.1

Author: cameronraysmith

packages/docs/package.json

@@ -38,7 +38,7 @@
   },
   "devDependencies": {
     "@biomejs/biome": "2.2.4",
-    "@playwright/test": "~1.54.0",
+    "@playwright/test": "^1.56.1",
     "@types/node": "^24.6.2",
     "@vitest/coverage-v8": "^3.2.4",
     "svgo": "^4.0.0",