Update yarn to v4.9.1 (#17357)

scripts/release/package.json

@@ -15,5 +15,5 @@
   "engines": {
     "node": ">=20"
   },
-  "packageManager": "yarn@4.9.0"
+  "packageManager": "yarn@4.9.1"
 }

scripts/tools/bundle-test/package.json

@@ -9,5 +9,5 @@
   "scripts": {
     "test": "node ./index.js"
   },
-  "packageManager": "yarn@4.9.0"
+  "packageManager": "yarn@4.9.1"
 }

scripts/tools/eslint-plugin-prettier-internal-rules/package.json

@@ -11,5 +11,5 @@
     "test": "node test.js",
     "test-coverage": "npx nyc node test.js"
   },
-  "packageManager": "yarn@4.9.0"
+  "packageManager": "yarn@4.9.1"
 }