Issue with composer and tntsearch

I'm trying to install tnt search driver for laravel scout with composer but I'm getting the following error:

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - teamtnt/tntsearch v2.1.0 requires ext-sqlite3 * -> the requested PHP extension sqlite3 is missing from your system.
    - teamtnt/tntsearch v2.0.0 requires ext-sqlite3 * -> the requested PHP extension sqlite3 is missing from your system.
    - teamtnt/laravel-scout-tntsearch-driver v7.2.0 requires teamtnt/tntsearch 2.* -> satisfiable by teamtnt/tntsearch[v2.0.0, v2.1.0].
    - Installation request for teamtnt/laravel-scout-tntsearch-driver ^7.2 -> satisfiable by teamtnt/laravel-scout-tntsearch-driver[v7.2.0].

  To enable extensions, verify that they are enabled in your .ini files:
    - C:\xampp\php\php.ini
  You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.

My composer.json file:

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "php": "^7.1.3",
        "andreasindal/laravel-markdown": "3.0.1",
        "fideloper/proxy": "^4.0",
        "guzzlehttp/guzzle": "^6.3",
        "kriswallsmith/buzz": "^1.0",
        "laracasts/utilities": "^3.0",
        "laravel/framework": "5.8.*",
        "laravel/scout": "^7.2",
        "laravel/tinker": "^1.0",
        "mailgun/mailgun-php": "^3.0",
        "nao-pon/flysystem-google-drive": "~1.1",
        "nyholm/psr7": "^1.1",
        "spatie/laravel-backup": "^6.2",
        "teamtnt/laravel-scout-tntsearch-driver": "^7.2"
    },
    "require-dev": {
        "beyondcode/laravel-dump-server": "^1.0",
        "filp/whoops": "^2.0",
        "fzaninotto/faker": "^1.4",
        "mockery/mockery": "^1.0",
        "nunomaduro/collision": "^2.0",
        "phpunit/phpunit": "^7.0",
        "stripe/stripe-php": "^7.4.0"
    },
    "autoload": {
        "classmap": [
            "database/seeds",
            "database/factories"
        ],
        "psr-4": {
            "App\": "app/"
        }
    },
    "autoload-dev": {
        "psr-4": {
            "Tests\": "tests/"
        }
    },
    "extra": {
        "laravel": {
            "dont-discover": [
            ]
        }
    },
    "scripts": {
        "post-root-package-install": [
            "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
        ],
        "post-create-project-cmd": [
            "@php artisan key:generate --ansi"
        ],
        "post-autoload-dump": [
            "Illuminate\Foundation\ComposerScripts::postAutoloadDump",
            "@php artisan package:discover --ansi"
        ]
    },
    "config": {
        "preferred-install": "dist",
        "sort-packages": true,
        "optimize-autoloader": true
    },
    "minimum-stability": "dev",
    "prefer-stable": true
}

I'm using XAMP in my windows machine for development.