MAGECLOUD-3850: [CLOUD Docker] Disabled extensions are still displayed in php container (#551)

Author: Yevhen Miroshnychenko

src/Docker/Compose/ProductionCompose.php

@@ -203,7 +203,7 @@ public function build(Repository $config): array
             'image' => 'alpine',
             'environment' => $this->converter->convert(array_merge(
                 $this->getVariables(),
-                !empty($phpExtensions) ? ['PHP_EXTENSIONS' => implode(' ', $phpExtensions)] : []
+                ['PHP_EXTENSIONS' => implode(' ', $phpExtensions)]
             )),
             'env_file' => [
                 './.docker/config.env',