Merge pull request #7 from php-etl/fix/use-github-api

set "use-github-api" to "false"

Author: clemzarch

src/PHP/ComposerInit.php

@@ -17,7 +17,8 @@ public function __toString(): string
         return (string) new Dockerfile\Run(sprintf(
             <<<'RUN'
                 set -ex \
-                    && composer init --no-interaction --name=%s && pwd
+                    && composer init --no-interaction --name=%s \
+                    && composer config use-github-api false
                 RUN,
             $this->name
         ));