Divide sklearn generation script into tasks

[merveenoyan]

Currently sklearn generation script takes only version as argument. It would be nice to put an option to run for a given task separately given we might add more tasks and it's cumbersome to run it for all tasks and push tons of models to skops-tests every time.
It would be nice if we could do:

def main(version, task):
    ...

if __name__ == "__main__":
    sklearn_version = sys.argv[1]
    task = sys.argv[2]
    main(sklearn_version, task)

It was a minor annoyance, I had to run the script and in the middle of the run I uploaded 5 models that I didn't need, and got 503.
Feel free to ignore if it's not good :')
@adrinjalali @BenjaminBossan

[BenjaminBossan]

Yes, the waiting time is annoying. I think it's good to have the option to choose a specific task. Ideally, there should still be the possibility to run all tasks at once.

[adrinjalali]

Sounds good to me too.