[5.4][PHP8.5] curl_close() function has been deprecated (joomla#46198)

https://wiki.php.net/rfc/deprecations_php_8_5#deprecate_curl_close

Author: heelc29

libraries/src/Http/Transport/CurlTransport.php

@@ -189,9 +189,6 @@ public function request($method, UriInterface $uri, $data = null, array $headers
         // Get the request information.
         $info = curl_getinfo($ch);
 
-        // Close the connection.
-        curl_close($ch);
-
         $response = $this->getResponse($content, $info);
 
         // Manually follow redirects if server doesn't allow to follow location using curl