Horizon 在 Laravel6 上面安装之后 没有 install 选项

      "require": {
          "php": "^7.2",
          "fideloper/proxy": "^4.0",
          "guzzlehttp/guzzle": "^6.5",
          "hhxsv5/laravel-s": "~3.5.0",
          "intervention/image": "^2.5",
          "jacobcyl/ali-oss-storage": "^2.1",
          "laravel/framework": "^6.2",
          "laravel/tinker": "^1.0",
          "overtrue/laravel-filesystem-qiniu": "^1.0",
          "overtrue/laravel-wechat": "~5.0",
          "tymon/jwt-auth": "1.0.0-rc.5"
      },
      "require-dev": {
          "beyondcode/laravel-dump-server": "^1.3",
          "facade/ignition": "1.11.1",
          "fzaninotto/faker": "^1.4",
          "mockery/mockery": "^1.0",
          "nunomaduro/collision": "^3.0",
          "phpunit/phpunit": "^8.0"
      },
      "config": {
          "optimize-autoloader": true,
         "preferred-install": "dist",
         "sort-packages": true,
          "platform": {
              "ext-pcntl": "7.2",
              "ext-posix": "7.2"
          }
      },

我的 composer.json ，但是安装 Horizon 之后 orizon