Pin Playwright to 1.60.0 to keep the integration-test Chromium unchanged

Author: kzhou314

.github/actions/find/package-lock.json

@@ -16,12 +16,15 @@
     "@accesslint/playwright": "^0.5.0",
     "@actions/core": "^3.0.1",
     "@axe-core/playwright": "^4.11.3",
-    "@playwright/test": "^1.60.0",
+    "@playwright/test": "1.60.0",
     "esbuild": "^0.28.0",
-    "playwright": "^1.60.0"
+    "playwright": "1.60.0"
   },
   "devDependencies": {
     "@types/node": "^25.9.0",
     "typescript": "^6.0.3"
+  },
+  "overrides": {
+    "playwright-core": "1.60.0"
   }
 }