Reduce RateLimiter requests timeout

[ctmbl]

default timeout for rate mlimiter requets is 20 :

RootPythia/src/api/rate_limiter.py

Line 9 in 7299044

DEFAULT_REQUEST_TIMEOUT = 20

RootPythia/src/api/rate_limiter.py

Line 63 in 7299044

self._request_timeout = request_timeout or DEFAULT_REQUEST_TIMEOUT

and no custom timeout is used when instancing the rate limiter:

RootPythia/src/bot/root_pythia_bot.py

Line 82 in 7299044

api_manager = RootMeAPIManager(rate_limiter)

this timeout is to big and triggers dirscord.gateway timeout:

2023-12-05 03:43:59 WARNING  discord.gateway Shard ID None heartbeat blocked for more than 10 seconds.
Loop thread traceback (most recent call last):
  File "/opt/root-pythia/src/main.py", line 75, in <module>
    main()
[big tracback]

2023-12-05 03:44:09 WARNING  discord.gateway Shard ID None heartbeat blocked for more than 20 seconds.
Loop thread traceback (most recent call last):
  File "/opt/root-pythia/src/main.py", line 75, in <module>
    main()
[big tracback]

2023-12-05 03:44:10 ERROR    api.rate_limiter Request GET: https://api.www.root-me.org//auteurs/<CENSORED> + {'api_key': '<CENSORED>'} Timeout
2023-12-05 03:44:10 INFO     discord.gateway Shard ID None has successfully RESUMED session <CENSORED>.

Which is useless

Reducing the timeout below 10 will save numeroux useless false positive errors and logs