Reorder split names

Reorder split names in the YAML metadata to be aligned with the order in the loading script.
See: https://github.com/huggingface/datasets/issues/5258

README.md

@@ -340,15 +340,15 @@ dataset_info:
   - name: to_caller_dialect_area
     dtype: string
   splits:
-  - name: test
-    num_bytes: 2560127
-    num_examples: 4514
   - name: train
     num_bytes: 128498512
     num_examples: 213543
   - name: validation
     num_bytes: 34749819
     num_examples: 56729
+  - name: test
+    num_bytes: 2560127
+    num_examples: 4514
   download_size: 14456364
   dataset_size: 165808458
 ---