Impacted versions: 10.0

Steps to reproduce:
1. Create pos order with two products.
2. One of the products, must be type= Stockable Product and quantity=0.
3. Pay order.
4. check order --> extra info --> picking
5. picking state = Waiting Availability  

Current behavior:
picking State = Waiting Availability

Expected behavior:
picking State  = Done
[As in v9.0](https://youtu.be/X_R_jHZdYb8)

Video/Screenshot link (optional):
https://youtu.be/eWCe6juEcvw

addons/point_of_sale/models/pos_order.py
import logging
from datetime import timedelta
from functools import partial
import psycopg2
import pytz
from odoo import api, fields, models, tools, _
from odoo.tools import float_is_zero
from odoo.exceptions import UserError
from odoo.http import request
import odoo.addons.decimal_precision as dp
_logger = logging.getLogger(__name__)
class PosOrder(models.Model):
    _name = "pos.order"
    _description = "Point of Sale Orders"
    _order = "id desc"
    @api.model
    def _amount_line_tax(self, line, fiscal_position_id):
        taxes = line.tax_ids.filtered(lambda t: t.company_id.id == line.order_id.company_id.id)
        if fiscal_position_id:
            taxes = fiscal_position_id.map_tax(taxes, line.product_id, line.order_id.partner_id)
        price = line.price_unit * (1 - (line.discount or 0.0) / 100.0)
        taxes = taxes.compute_all(price, line.order_id.pricelist_id.currency_id, line.qty, product=line.product_id, partner=line.order_id.partner_id or False)['taxes']
        return sum(tax.get('amount', 0.0) for tax in taxes)
    @api.model
    def _order_fields(self, ui_order):