misc: Run pre-commit run --all-files

This is reflect the updates made to black when running `pre-commit
autoupdate`.

Change-Id: Ifb7fea117f354c7f02f26926a5afdf7d67bc5919

util/checkpoint_aggregator.py

@@ -57,7 +57,7 @@ def aggregate(output_dir, cpts, no_compress, memory_size):
     max_curtick = 0
     num_digits = len(str(len(cpts) - 1))
 
-    for (i, arg) in enumerate(cpts):
+    for i, arg in enumerate(cpts):
         print(arg)
         merged_config = myCP()
         config = myCP()