Use main branch for chromiumos/config

Bug: 1155492
Change-Id: Ic317861da68766f3f13c73310e8c0d7288b86d9a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2577624
Auto-Submit: Josip Sokcevic <sokcevic@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
diff --git a/infra/config/recipes.cfg b/infra/config/recipes.cfg
index bde49ab..bbbe502 100644
--- a/infra/config/recipes.cfg
+++ b/infra/config/recipes.cfg
@@ -15,7 +15,7 @@
   "canonical_repo_url": "https://chromium.googlesource.com/chromiumos/infra/proto",
   "deps": {
     "chromiumos_config": {
-      "branch": "refs/heads/master",
+      "branch": "refs/heads/main",
       "revision": "7240965960bca1c46e67fcebb82ee3358c7f675c",
       "url": "https://chromium.googlesource.com/chromiumos/config.git"
     },