[BUGFIX] Use TYPO3 http client

Since all $GLOBALS['TYPO3_CONF_VARS']['HTTP'] options should be
respected we can simple use the built in client. Also 'proxy'
is respected in this case, so we don't need a extra setting for this.

Resolves: web-vision#370
Relates: web-vision#331

Classes/AbstractClient.php

@@ -6,6 +6,7 @@
 
 use DeepL\Translator;
 use Psr\Log\LoggerInterface;
+use TYPO3\CMS\Core\Http\Client\GuzzleClientFactory;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 use WebVision\WvDeepltranslate\Exception\ApiKeyNotSetException;
 
@@ -42,8 +43,8 @@ protected function getTranslator(): Translator
         if ($this->configuration->getApiKey() === '') {
             throw new ApiKeyNotSetException('The api key ist not set', 1708081233823);
         }
-
-        $this->translator = GeneralUtility::makeInstance(Translator::class, $this->configuration->getApiKey());
+        $options[TranslatorOptions::HTTP_CLIENT] = GeneralUtility::makeInstance(GuzzleClientFactory::class)->getClient();
+        $this->translator = GeneralUtility::makeInstance(Translator::class, $this->configuration->getApiKey(), $options);
 
         return $this->translator;
     }