Permission sets not working with `jsr:@std/http/file-server`

{
  "tasks": {
    "dev": "deno run -P jsr:@std/http/file-server"
  },
  "permissions": {
    "default": {
      "read": true,
      "net": true,
      "sys": {
        "allow": [
          "networkInterfaces"
        ]
      }
    }
  },
  "imports": {
    "@std/http": "jsr:@std/http@^1.0.21"
  }
}