Update composer dependencies

composer.json

@@ -4,11 +4,11 @@
     "type": "library",
     "require": {
         "php": ">=7.1",
-        "guzzlehttp/guzzle": "^6.0"
+        "guzzlehttp/guzzle": "^7.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^8.0",
-        "vlucas/phpdotenv": "^3.0"
+        "phpunit/phpunit": "^9.0",
+        "vlucas/phpdotenv": "^5.0"
     },
     "autoload": {
         "psr-4": {

tests/TestClient.php

@@ -3,17 +3,20 @@
 use GuzzleHttp\Client;
 use GuzzleHttp\Exception\ClientException;
 use GuzzleHttp\Psr7\Request;
+use GuzzleHttp\Psr7\Response;
+use Psr\Http\Message\ResponseInterface;
 
 class TestClient extends Client {
     protected $body;
 
-    public function request($method, $uri = '', array $options = []) {
+    public function request(string $method, $uri = '', array $options = []): ResponseInterface {
         $ex = explode('/', $uri);
         $method = end($ex);
 
         if (method_exists($this, $method)) {
             $this->body = $this->{$method}(isset($options['form_params']) ? $options['form_params'] : []);
-            return $this;
+
+            return new Response(200, [], $this->body);
         } else {
             return parent::request($method, $uri, $options);
         }
@@ -48,4 +51,4 @@ protected function getWebhookInfo() {
     protected function sendPhoto(array $params) {
         return '{"ok":true,"result":{"message_id":1,"from":{"id":123,"is_bot":true,"first_name":"mybot","username":"mybot"},"chat":{"id":123,"first_name":"Alex","last_name":"B","username":"rrr","type":"private"},"date":1530214125,"photo":[{"file_id":"AgADBAADmq0xG7D3qVGRhEmripIm6_nhmxoABJXHWCtlT_tx66ACAAEC","file_size":288,"width":1,"height":1}]}}';
     }
-}
+}

tests/bootstrap.php

@@ -30,7 +30,7 @@
     copy(__DIR__ .'/.env.example', __DIR__ .'/.env');
 }
 
-$dotenv = Dotenv::create(__DIR__);
+$dotenv = Dotenv::createImmutable(__DIR__);
 $dotenv->load();
 
 /*