Fix missing comma

Author: rschu1ze

starrocks/results/m6i.8xlarge_bluesky_1000m.json

@@ -12,7 +12,7 @@
   "total_size": 192981470543,
   "result": [
       [2.01,1.59,1.58],
-      [76.14,11.26,11.29]
+      [76.14,11.26,11.29],
       [20.50,3.40,3.32],
       [14.74,2.59,2.72],
       [2.93,3.02,2.74]