chore(deps-dev): bump npm from 11.6.2 to 11.9.0

Require npm 11.8.0 or later to avoid changes.

Author: caugner

package-lock.json

@@ -13,10 +13,16 @@
     "type": "git",
     "url": "git+https://github.com/mdn/content.git"
   },
-  "packageManager": "npm@11.6.2",
+  "packageManager": "npm@11.9.0",
   "engines": {
     "node": ">=24"
   },
+  "devEngines": {
+    "packageManager": {
+      "name": "npm",
+      "version": ">=11.8.0"
+    }
+  },
   "type": "module",
   "scripts": {
     "info:fred": "node -e \"process.stderr.write('\\n🐥 This command is using Fred: https://github.com/mdn/fred\\n🐞 Please report issues here:  https://github.com/mdn/fred/issues/new?template=bug.yml\\n\\n')\"",