build: fix upload script defaults (#42430)

script/lib/util.py

@@ -158,7 +158,7 @@ def azput(prefix, key_prefix, files):
   print(output)
 
 def get_out_dir():
-  out_dir = 'Debug'
+  out_dir = 'Default'
   override = os.environ.get('ELECTRON_OUT_DIR')
   if override is not None:
     out_dir = override

script/release/uploaders/upload.py

@@ -48,7 +48,7 @@ def main():
   if args.verbose:
     enable_verbose_mode()
   if args.upload_to_storage:
-    utcnow = datetime.datetime.utcnow()
+    utcnow = datetime.datetime.now(datetime.UTC)
     args.upload_timestamp = utcnow.strftime('%Y%m%d')
 
   build_version = get_electron_build_version()