Support the ESP8266_RTOS_SDK (WPA3 for the ESP8266)

**Describe the problem you have/What new integration you would like**

- The [ESP8266_NONOS_SDK](https://github.com/espressif/ESP8266_NONOS_SDK) (which is used by [ESP8266 Arduino](https://github.com/esp8266/Arduino)) no longer receives feature updates (starting from December 2019). [[Source](https://github.com/espressif/ESP8266_NONOS_SDK/blob/c6ab959ad630dc661fdf74ef8852d6501a321e0c/README.md?plain=1#L5)]
- New features like [WPA3 and PMF](https://github.com/espressif/ESP8266_RTOS_SDK/releases/tag/v3.4) are only supported by the [ESP8266_RTOS_SDK](https://github.com/espressif/ESP8266_RTOS_SDK).

**Please describe your use case for this integration and alternatives you've tried:**

- I would like to enable WPA3 and PMF for my WiFi network. Currently there are no alternatives.
- I hope the RTOS SDK will also improve the connection issues on all my ESP8266 devices.

**Additional context**

- Discussion about migrating the Arduino framework to the ESP8266_RTOS_SDK: https://github.com/esp8266/Arduino/issues/5790
- Espressif is planning to migrate the ESP8266_RTOS_SDK to esp-idf [[1](https://github.com/espressif/ESP8266_RTOS_SDK#roadmap)] [[2](https://github.com/espressif/ESP8266_RTOS_SDK/issues/1166)]
- https://github.com/esphome/feature-requests/issues/605