infra/config: enable no_cc_authors

This is to remove cc from 'Roll recipe dependencies' CLs.
I think it is more like spam and don't have good benefit for this
repository.

ref:
https://source.chromium.org/chromium/infra/infra/+/main:recipes-py/recipe_engine/recipes_cfg.proto;l=84-86;drc=63e03ca57cb20f6a776ae27dd1fee9e2dd60f1b7

Bug: 1497879
Change-Id: I8a40dcec3903c817f7212dfe68d0fff1044eef2e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/5028557
Auto-Submit: Takuto Ikuta <tikuta@chromium.org>
Reviewed-by: Yiwei Zhang <yiwzhang@google.com>
Commit-Queue: Yiwei Zhang <yiwzhang@google.com>

infra/config/recipes.cfg

@@ -10,7 +10,8 @@
       "tbr_emails": [
         "iannucci@chromium.org"
       ]
-    }
+    },
+    "no_cc_authors": true
   },
   "canonical_repo_url": "https://chromium.googlesource.com/chromium/tools/depot_tools.git",
   "deps": {