Set managed:True for infra_superproject configs.

Bug: 1415507
Change-Id: I2bc0a398dea5367c1648665c64422c61dccfafc4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4678266
Reviewed-by: Josip Sokcevic <sokcevic@chromium.org>
Commit-Queue: Josip Sokcevic <sokcevic@chromium.org>
Auto-Submit: Joanna Wang <jojwang@chromium.org>

fetch_configs/infra_superproject.py

@@ -22,7 +22,7 @@ class InfraSuperproject(config_util.Config):
             {
                 'name': '.',
                 'url': url('chromium', 'infra/infra_superproject'),
-                'managed': False,
+                'managed': True,
                 'custom_vars': {},
             },
         ],