Update guzzle and dev packages (#58)

* Bump guzzle to 7

* Bump dev packages

* Migrate phpunit to 10.x

.gitignore

@@ -1,6 +1,6 @@
 /extras/
 /vendor/
-.phpunit.result.cache
+/.phpunit.cache/
 composer.lock
 composer.phar
 phpunit.xml

composer.json

@@ -38,12 +38,12 @@
     "require": {
         "php": "^8.0",
         "ext-json": "*",
-        "guzzlehttp/guzzle": "^6.2"
+        "guzzlehttp/guzzle": "^7.8"
     },
     "require-dev": {
-        "mockery/mockery": "^1.0",
-        "phpstan/phpstan": "^0.12.32",
-        "phpunit/phpunit": "^7.0|^8.0|^9.0"
+        "mockery/mockery": "^1.6",
+        "phpstan/phpstan": "^1.10",
+        "phpunit/phpunit": "^10.0"
     },
     "autoload": {
         "psr-4": {

phpunit.xml.dist

@@ -1,18 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit backupGlobals="false"
-         backupStaticAttributes="false"
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
+         backupGlobals="false"
          bootstrap="vendor/autoload.php"
          colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
          processIsolation="false"
          stopOnFailure="false"
-         verbose="true"
-        >
+         cacheDirectory=".phpunit.cache"
+         backupStaticProperties="false"
+>
     <testsuites>
         <testsuite name="Package Test Suite">
-            <directory suffix=".php">tests/</directory>
+            <directory>tests/</directory>
             <exclude>tests/database/factories/</exclude>
         </testsuite>
     </testsuites>

src/HttpClient/GuzzleHttpClient.php

@@ -15,10 +15,10 @@
 
 use Cog\Contracts\YouTrack\Rest\HttpClient\Exceptions\HttpClientException;
 use Cog\Contracts\YouTrack\Rest\HttpClient\HttpClient as HttpClientInterface;
-use GuzzleHttp\Client;
 use GuzzleHttp\ClientInterface;
 use GuzzleHttp\Exception\BadResponseException;
 use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Utils;
 use Psr\Http\Message\ResponseInterface;
 use Throwable;
 
@@ -86,7 +86,7 @@ private function buildOptions(array $options): array
      */
     private function appendUserAgent(array $options): array
     {
-        $defaultAgent = 'GuzzleHttp/' . Client::VERSION;
+        $defaultAgent = Utils::defaultUserAgent();
         if (extension_loaded('curl') && function_exists('curl_version')) {
             $curlVersion = \curl_version();
             if (\is_array($curlVersion)) {