Rollup merge of #55582 - yamaguchi1024:publish_toolstate, r=alexcrichton

Remove unused import copy from publish_toolstate.py

Author: kennytm

src/tools/publish_toolstate.py

@@ -14,7 +14,6 @@
 import sys
 import re
 import json
-import copy
 import datetime
 import collections
 import textwrap