Update MaxCDN.php

Adds curl 7.62.0 compatibility

Author: wpdevteam

src/MaxCDN.php

@@ -47,6 +47,9 @@ private function execute($selected_call, $method_type, $params) {
 		// create curl resource 
 		$ch = curl_init(); 
 
+		// force curl http/1.1
+		curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
+		
 		// set url 
 		curl_setopt($ch, CURLOPT_URL, $req_req);