Update EvalEval source links to flat datastore

Updates existing EvalEval Community Evals YAML entries to link to flat datastore aggregate objects pinned to an immutable EEE datastore commit, and normalizes source.name to EvalEval.

No score, dataset, task, or date changes are intended. This updates existing open PR refs only.

Contributor: evaleval

.eval_results/mmlu_pro.yaml

@@ -3,5 +3,5 @@
     task_id: mmlu_pro
   source:
     name: EvalEval
-    url: https://huggingface.co/datasets/evaleval/EEE_datastore/blob/b11a260fe158662bb63b4a144be2b5690615414d/flat/objects/2a/73/2a734d0f-7fcf-48d0-bea6-ad17cd749ee4.json
+    url: https://huggingface.co/datasets/evaleval/EEE_datastore/blob/192329fb7d6b15b7b0936a1a58ae862aa7e8ba24/flat/objects/2a/73/2a734d0f-7fcf-48d0-bea6-ad17cd749ee4.json
   value: 75.7