update docstring to mention evals

src/transformers/integrations/integration_utils.py

@@ -692,7 +692,7 @@ def print_to_file(s):
 
 class WandbCallback(TrainerCallback):
     """
-    A [`TrainerCallback`] that logs metrics, media, model checkpoints to [Weight and Biases](https://www.wandb.com/).
+    A [`TrainerCallback`] that logs metrics, media, evals, and model checkpoints to [Weight and Biases](https://www.wandb.com/).
     """
 
     def __init__(