ci(release): pin release workflow to dispatched commit (#271)

Author: chenjiahan

.github/workflows/release.yml

@@ -24,11 +24,6 @@ on:
           - rc
           - canary
           - latest
-      branch:
-        description: 'Release Branch (confirm release branch)'
-        required: true
-        default: 'main'
-
 permissions: {}
 
 jobs:
@@ -65,7 +60,6 @@ jobs:
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           fetch-depth: 1
-          ref: ${{ github.event.inputs.branch }}
 
       - name: Setup Node.js
         uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0