move the HttpClient Mock from akeneo-plugin to phpunit-extension

Author: clemzarch

composer.json

@@ -3,11 +3,16 @@
     "description": "Extension for testing FastMap and ETL components with PHPUnit testing framework",
     "type": "library",
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "phpunit/phpunit": "^9",
         "nikic/php-parser": "^4.10",
         "php-etl/pipeline-contracts": "^0.3.0",
-        "adlawson/vfs": "*"
+        "adlawson/vfs": "*",
+        "php-http/message": "^1.11",
+        "php-http/mock-client": "^1.4@dev",
+        "fakerphp/faker": "^1.19",
+        "laminas/laminas-diactoros": "^2.6",
+        "akeneo/api-php-client": "^9.0"
     },
     "license": "MIT",
     "authors": [