Update for home assistant 2023.07

[artursulkowski]

Current version works with: Home Assistant 2023.5.0.dev0
I need to update at least to 2023.07

Example of error I am getting on 2023.06.3:
Logger: homeassistant.config_entries
Source: custom_components/slxchargingcontroller/init.py:30
Integration: Slx Charging Controller (documentation)
First occurred: 20:27:43 (1 occurrences)
Last logged: 20:27:43

Error setting up entry SLX Charging Controller for slxchargingcontroller
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/config_entries.py", line 387, in async_setup
result = await component.async_setup_entry(hass, self)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/config/custom_components/slxchargingcontroller/init.py", line 30, in async_setup_entry
hass.config_entries.async_setup_platforms(entry, PLATFORMS)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'ConfigEntries' object has no attribute 'async_setup_platforms'