Remove deprecated curl_close() call (#24)

Since PHP 8.0, curl_close() has no effect as curl handles are automatically closed.
Since PHP 8.5, curl_close() is deprecated.

As this project requires PHP >=8.2, the curl_close() call is unnecessary and
generates deprecation warnings in PHP 8.5+.

Closes #22

Co-authored-by: justpilot <[email protected]>

Author: cl77

src/Client.php

@@ -121,7 +121,6 @@ protected function request(string $path, HttpMethod $method, array $payload = []
         $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
         $isSuccess = $httpCode === 200;
         $error = curl_error($ch);
-        curl_close($ch);
 
         if ($error !== '') throw new UnexpectedApiResponseException($error);
         if (false === $res) throw new UnexpectedApiResponseException($error);