[infra] finish migration to the `main` branch.

R=sdefresne

Bug: 1205320
Change-Id: I4502caa072c7eab54ea0a8b3bb6c3077070755d6
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/11440
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>

infra/config/generated/commit-queue.cfg

diff --git a/infra/config/generated/commit-queue.cfg b/infra/config/generated/commit-queue.cfg
index 9abfe96..69f69eb 100644
--- a/infra/config/generated/commit-queue.cfg
+++ b/infra/config/generated/commit-queue.cfg
@@ -16,7 +16,7 @@
     url: "https://gn-review.googlesource.com"
     projects {
       name: "gn"
-      ref_regexp: "refs/heads/master"
+      ref_regexp: "refs/heads/main"
     }
   }
   verifiers {

infra/config/generated/luci-scheduler.cfg

diff --git a/infra/config/generated/luci-scheduler.cfg b/infra/config/generated/luci-scheduler.cfg
index 87b7d69..6657369 100644
--- a/infra/config/generated/luci-scheduler.cfg
+++ b/infra/config/generated/luci-scheduler.cfg
@@ -39,7 +39,7 @@
   triggers: "win"
   gitiles {
     repo: "https://gn.googlesource.com/gn"
-    refs: "regexp:refs/heads/master"
+    refs: "regexp:refs/heads/main"
   }
 }
 acl_sets {

infra/config/main.star

diff --git a/infra/config/main.star b/infra/config/main.star
old mode 100644
new mode 100755
index 40b628b..cc82709
--- a/infra/config/main.star
+++ b/infra/config/main.star
@@ -71,7 +71,7 @@
     name = "gn-trigger",
     bucket = "ci",
     repo = "https://gn.googlesource.com/gn",
-    refs = ["refs/heads/master"],
+    refs = ["refs/heads/main"],
 )
 
 luci.bucket(name = "ci", acls = [
@@ -104,7 +104,7 @@
     name = "gn",
     watch = cq.refset(
         repo = "https://gn.googlesource.com/gn",
-        refs = ["refs/heads/master"],
+        refs = ["refs/heads/main"],
     ),
     acls = [
         acl.entry(