Point Gold config for lottie-ci to main

Bug: skia:11951
Change-Id: I1ee0e624d4739297bf3ff57437015d6796537a9b
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/404199
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
diff --git a/golden/k8s-instances/lottie/lottie-gitilesfollower.json5 b/golden/k8s-instances/lottie/lottie-gitilesfollower.json5
index 7c3f6b1..71f2ec6 100644
--- a/golden/k8s-instances/lottie/lottie-gitilesfollower.json5
+++ b/golden/k8s-instances/lottie/lottie-gitilesfollower.json5
@@ -9,10 +9,10 @@
     // Arbitrary commit from 1 Apr 2021
     initial_commit: "0a6b4d1045df5b7ccaa851203111b6f4bcb4340c",
     system_name: "gerrit",
-    branch: "master",
+    branch: "main",
     legacy_updater_in_use: true,
   }],
 
   prom_port: ":20000",
   ready_port: ":8000"
-}
\ No newline at end of file
+}
diff --git a/golden/k8s-instances/lottie/lottie.json5 b/golden/k8s-instances/lottie/lottie.json5
index c7097ae..12bd96b 100644
--- a/golden/k8s-instances/lottie/lottie.json5
+++ b/golden/k8s-instances/lottie/lottie.json5
@@ -12,7 +12,7 @@
   diff_work_topic: "gold-lottie-diffmetrics", // includes instance id
   gcs_bucket: "skia-gold-lottie",
   git_bt_table: "git-repos2",
-  git_repo_branch: "master",
+  git_repo_branch: "main",
   git_repo_url: "https://skia.googlesource.com/lottie-ci",
   fs_namespace: "lottie",
   fs_project_id: "skia-firestore",