Patch QQP prompt (#1661)

lm_eval/tasks/glue/qqp/default.yaml

@@ -5,11 +5,11 @@ dataset_name: qqp
 output_type: multiple_choice
 training_split: train
 validation_split: validation
-doc_to_text: "\nSentence 1: {{question1}}\nSentence 2: {{question2}}\nAnswer:"
+doc_to_text: "Question 1: {{question1}}\nQuestion 2: {{question2}}\nQuestion: Do both questions ask the same thing?\nAnswer:"
 doc_to_target: label
 doc_to_choice: ["no", "yes"]
 metric_list:
   - metric: acc
   - metric: f1
 metadata:
-  version: 1.0
+  version: 2.0