Fix for wandb=off (#1577)

[INFO] Starting distributed training...
^C
(metta) 🐡 ^C
Field required [type=missing, input_value={'enabled': True},
input_type=DictConfig]
For further information visit https://errors.pydantic.dev/2.11/v/missing
1.entity
Field required [type=missing, input_value={'enabled': True},
input_type=DictConfig]
For further information visit https://errors.pydantic.dev/2.11/v/missing
1.group
Field required [type=missing, input_value={'enabled': True},
input_type=DictConfig]
For further information visit https://errors.pydantic.dev/2.11/v/missing
1.name
Field required [type=missing, input_value={'enabled': True},
input_type=DictConfig]
For further information visit https://errors.pydantic.dev/2.11/v/missing
1.run_id
Field required [type=missing, input_value={'enabled': True},
input_type=DictConfig]
For further information visit https://errors.pydantic.dev/2.11/v/missing
1.data_dir
Field required [type=missing, input_value={'enabled': True},
input_type=DictConfig]
For further information visit https://errors.pydantic.dev/2.11/v/missing
1.job_type
Field required [type=missing, input_value={'enabled': True},
input_type=DictConfig]

I tried to run a job with wandb=off and got this. This PR fixes this.

[Asana
Task](https://app.asana.com/1/1209016784099267/project/1210348820405981/task/1210840214839212)

---------

Co-authored-by: Nishad Singh <nishad@stem.ai>

Author: relh

devops/train.sh

@@ -56,7 +56,6 @@ PYTHONPATH=$PYTHONPATH:. uv run torchrun \
   --node-rank=$NODE_INDEX \
   tools/train.py \
   trainer.num_workers=null \
-  wandb.enabled=true \
   $args
 EXIT_CODE=$?
 set -e