Division by zero error

[bmcclure]

Describe the bug

When setting up the integration, no entities get added, and in the log I find the error:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 249, in _async_setup_platform
    await asyncio.shield(task)
  File "/config/custom_components/steam_wishlist/sensor.py", line 12, in async_setup_entry
    await hass.data[DOMAIN][config_entry.entry_id].async_register_component(
  File "/config/custom_components/steam_wishlist/sensor_manager.py", line 136, in async_register_component
    await self.coordinator.async_refresh()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 168, in async_refresh
    await self._async_refresh(log_failures=True)
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 270, in _async_refresh
    update_callback()
  File "/config/custom_components/steam_wishlist/sensor_manager.py", line 169, in async_update_items
    steam_game = get_steam_game(game_id, game)
  File "/config/custom_components/steam_wishlist/util.py", line 22, in get_steam_game
    normal_price = round(pricing["price"] / (100 - discount_pct), 2)
ZeroDivisionError: division by zero

To Reproduce
Steps to reproduce the behavior:

1. Add free games to your wishlist (I assume?)
2. Attempt to add the Steam Wishlist integration for your account
3. Check the logs

Expected behavior
I expected the entities to be created related to my wishlist, but instead got this error.

Home Assistant Version:
2022.6.5

Custom Component Version:
2.2.2

Additional context
This used to work fine for me, but I'm thinking maybe I didn't have free games in my wishlist at that time. Now, I use my wishlist to remember some free games that I haven't had a chance to install or play yet, and I'm thinking that is causing a division by 0 in the price math.

[boralyl]

Fixed in v2.2.3, thanks for reporting!