Change Branch in workflow

Author: zeng-github01

.github/workflows/Recovery Build.yml

@@ -18,7 +18,7 @@ on:
       DEVICE_TREE_BRANCH:
         description: 'DEVICE_TREE_BRANCH'
         required: true
-        default: 'gatekeeper'
+        default: 'twrp-12.1_cn'
       DEVICE_PATH:
         description: 'DEVICE_PATH'
         required: true