Fix phpGH-20603 issue on windows 32 bits.

the timeout needed to be unsigned.

Author: devnexen

ext/ftp/php_ftp.c

@@ -158,15 +158,15 @@ PHP_FUNCTION(ftp_connect)
 		RETURN_THROWS();
 	}
 
-	const zend_long timeoutmax = (zend_long)((double) PHP_TIMEOUT_ULL_MAX / 1000000.0);
+	const zend_ulong timeoutmax = (zend_ulong)((double) PHP_TIMEOUT_ULL_MAX / 1000000.0);
 
 	if (timeout_sec <= 0) {
 		zend_argument_value_error(3, "must be greater than 0");
 		RETURN_THROWS();
 	}
 
 	if (timeout_sec >= timeoutmax) {
-		zend_argument_value_error(3, "must be less than " ZEND_LONG_FMT, timeoutmax);
+		zend_argument_value_error(3, "must be less than " ZEND_ULONG_FMT, timeoutmax);
 		RETURN_THROWS();
 	}