Add the official speedtest cli

Feature Requests
61

Hello

I have some problems on deploying the container.

Tried it on Debian 12 and Alpine 3.18.

speedtest:/speedtest# docker-compose up speedtest
[+] Running 1/0
 ✔ Container speedtest  Created                                                                                        0.0s 
Attaching to speedtest
speedtest  | Traceback (most recent call last):
speedtest  |   File "/usr/src/app/./speedtest.py", line 22, in <module>
speedtest  |     refresh_interval = int(config['DEFAULT']['REFRESH_INTERVAL']) # Interval in seconds at which speedtest will be run
speedtest  |                            ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
speedtest  |   File "/usr/local/lib/python3.12/configparser.py", line 1222, in __getitem__
speedtest  |     raise KeyError(key)
speedtest  | KeyError: 'REFRESH_INTERVAL'
speedtest exited with code 0

my docker-compose.yml:

speedtest:/speedtest# cat docker-compose.yml 
services:
  speedtest:
    container_name: speedtest
    image: adorobis/speedtest2mqtt:latest
    restart: unless-stopped
    volumes:
      - /speedtest/config:/usr/src/config

Any ideas?