Checkout Patch (Step 2)

[walmat]

This step should be identical to the function we currently have in place to submit the customer information for the task. I don't believe anything needs to change here.

After we receive a successful response back here (200 || 302 -> /checkouts) then we should be blocked by the monitor thread (if it's waiting for the product still). We will need to keep the checkout session alive, so this will need to refresh/ping the checkout every ~10 minutes while we're monitoring.