fix: wrong argilla module import

Author: frascuchon

Diff for: tests/unit/steps/argilla/test_preference.py

@@ -15,7 +15,7 @@
 import os
 from unittest.mock import patch
 
-import argilla_sdk as rg
+import argilla as rg
 from distilabel.pipeline.local import Pipeline
 from distilabel.steps.argilla.preference import PreferenceToArgilla
 

Diff for: tests/unit/steps/argilla/test_text_generation.py

@@ -15,7 +15,7 @@
 import os
 from unittest.mock import patch
 
-import argilla_sdk as rg
+import argilla as rg
 from distilabel.pipeline.local import Pipeline
 from distilabel.steps.argilla.text_generation import TextGenerationToArgilla