workflow: add v2 branch

WorldObservationLog · WorldObservationLog · commit 51150e2ff006 · 2025-06-15T17:40:59.000+08:00
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
@@ -2,6 +2,8 @@ on:
   push:
     branches:
       - master
+      - v2
+  workflow_dispatch:
 
 jobs:
   build_winodws:
