Add Mistral-Nemo models sender

mistralai/Mistral-Nemo-Base-2407_eval_request_False_bfloat16_Original.json

@@ -11,5 +11,6 @@
   "model_type": "pretrained",
   "job_id": "7767522",
   "job_start_time": "2024-07-19T10:52:41.000000",
-  "use_chat_template": false
+  "use_chat_template": false,
+  "sender": "alozowski"
 }

mistralai/Mistral-Nemo-Instruct-2407_eval_request_False_bfloat16_Original.json

@@ -11,5 +11,6 @@
   "model_type": "chat",
   "job_id": "7767516",
   "job_start_time": "2024-07-19T10:52:25.000000",
-  "use_chat_template": true
+  "use_chat_template": true,
+  "sender": "alozowski"
 }