chore: 支持手动触发 Docker 镜像工作流

.github/workflows/docker.yml

@@ -1,6 +1,7 @@
 name: Build Docker Image
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - main
@@ -106,4 +107,4 @@ jobs:
             docker buildx imagetools create -t $tag \
               ${tag}-amd64 \
               ${tag}-arm64
-          done
+          done