feat(dataset api): (1.1/n) dataset api implementation fix pre-commit (#1625)

# What does this PR do?
- fix pre-commit with api updates

[//]: # (If resolving an issue, uncomment and update the line below)
[//]: # (Closes #[issue-number])

## Test Plan
```
pre-commit
```

[//]: # (## Documentation)

llama_stack/templates/open-benchmark/run.yaml

@@ -158,62 +158,32 @@ shields:
 - shield_id: meta-llama/Llama-Guard-3-8B
 vector_dbs: []
 datasets:
-- dataset_schema:
-    input_query:
-      type: string
-    expected_answer:
-      type: string
-    chat_completion_input:
-      type: string
-  url:
-    uri: https://huggingface.co/datasets/llamastack/simpleqa
-  metadata:
-    path: llamastack/simpleqa
-    split: train
+- purpose: eval/messages-answer
+  source:
+    type: uri
+    uri: huggingface://llamastack/simpleqa?split=train
+  metadata: {}
   dataset_id: simpleqa
   provider_id: huggingface
-- dataset_schema:
-    input_query:
-      type: string
-    expected_answer:
-      type: string
-    chat_completion_input:
-      type: string
-  url:
-    uri: https://huggingface.co/datasets/llamastack/mmlu_cot
-  metadata:
-    path: llamastack/mmlu_cot
-    name: all
-    split: test
+- purpose: eval/messages-answer
+  source:
+    type: uri
+    uri: huggingface://llamastack/mmlu_cot?split=test&name=all
+  metadata: {}
   dataset_id: mmlu_cot
   provider_id: huggingface
-- dataset_schema:
-    input_query:
-      type: string
-    expected_answer:
-      type: string
-    chat_completion_input:
-      type: string
-  url:
-    uri: https://huggingface.co/datasets/llamastack/gpqa_0shot_cot
-  metadata:
-    path: llamastack/gpqa_0shot_cot
-    name: gpqa_main
-    split: train
+- purpose: eval/messages-answer
+  source:
+    type: uri
+    uri: huggingface://llamastack/gpqa_0shot_cot?split=test&name=gpqa_main
+  metadata: {}
   dataset_id: gpqa_cot
   provider_id: huggingface
-- dataset_schema:
-    input_query:
-      type: string
-    expected_answer:
-      type: string
-    chat_completion_input:
-      type: string
-  url:
-    uri: https://huggingface.co/datasets/llamastack/math_500
-  metadata:
-    path: llamastack/math_500
-    split: test
+- purpose: eval/messages-answer
+  source:
+    type: uri
+    uri: huggingface://llamastack/math_500?split=test
+  metadata: {}
   dataset_id: math_500
   provider_id: huggingface
 scoring_fns: []