DB Update API doesn't work correctly when using floating-point types

[iliyan-velichkov]

Example usage of the update API:

import { update } from "sdk/db";

const UPDATE_BY_CODE = "UPDATE `oc_order_total` SET `value` = ? WHERE (`order_id` = ? AND `code`=?)";

const orderId = 1;
const value = 13.13;
const code = 'total';
const params = [value, orderId, code];
update.execute(UPDATE_BY_CODE, params, 'ElectronicsStoreOpenCartDB');

Results in incorrect value 13, must be 13.13:

Most probably due to the following code

 parameterElement.getAsInt()

in here

[iliyan-velichkov]

PR: #3929