Bump guzzlehttp/guzzle

Author: JaZo

composer.json

@@ -16,7 +16,7 @@
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^2.16",
-        "guzzlehttp/guzzle": "^7.0",
+        "guzzlehttp/guzzle": "^7.3",
         "phpunit/phpunit": "^8.0|^9.0",
         "php-http/mock-client": "^1.2"
     },