recipes: Manually bump chromiumos/config pin

crosreview.com/2142931 landed a use of updated protobuf definitions
from chromiumos/config which breaks `recipes.py manual_roll`

BUG=chromium:1065212
BUG=chromium:1071197
TEST=./recipes/recipes.py autoroll

Change-Id: Ied0461618a5b91135bd3ca9e70d6fa78a3b6d073
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2151127
Tested-by: Prathmesh Prabhu <pprabhu@chromium.org>
Auto-Submit: Prathmesh Prabhu <pprabhu@chromium.org>
Reviewed-by: Sean Abraham <seanabraham@chromium.org>
Commit-Queue: Sean Abraham <seanabraham@chromium.org>
1 file changed