fix: Fatal error including API version string in a namespaced project (#18) (#19)

Co-authored-by: Imanol Romera <37277561+superwave1999@users.noreply.github.com>

Author: sebastianMindee

src/Http/MindeeApi.php

@@ -35,7 +35,7 @@
  */
 const TIMEOUT_DEFAULT = 120;
 // phpcs:disable
-include_once('src/version.php');
+include_once(dirname(__DIR__) . '/version.php');
 // phpcs:enable
 const USER_AGENT = 'mindee-api-php@v' . VERSION . ' php-v' . PHP_VERSION . ' ' . PHP_OS;