feat: add to_argilla method to EvolInstructTask generated datasets

[plaguss]

Description

This PR adds pending functionality to visualise evol instruct datasets in argilla

Example of an evol instruct dataset:

Example to reproduce:

from datasets import load_dataset
from distilabel.tasks import EvolInstructTask
from distilabel.dataset import CustomDataset

dataset = load_dataset("argilla/distilabel-sample-evol-instruct", split="train")
dataset = CustomDataset(dataset.data.table)
dataset.task = EvolInstructTask()

# rg.init(...)
rg_dataset = dataset.to_argilla()
rg_dataset.push_to_argilla(name="evol-instruct-test", workspace="admin")

Closes #259

[davidberenstein1957]

Also, I think I might be missing some tests.

[plaguss]

The new InstructTaskMixin contains the common behaviour for the task and new tests have been added for the integration