feat: build node support set platform

Author: zhengkunwang223

.cnb.yml

@@ -15,7 +15,7 @@ main:
 
         - name: docker build and push
           script: docker buildx build 
-            --platform linux/amd64,linux/arm64,linux/ppc64le,linux/s390x 
+            --platform $PLATFORM 
             --build-arg NODE_VERSION=$NODE_VERSION 
             -t $IMAGE_TAG 
             -f node/Dockerfile 

.cnb/web_trigger.yml

@@ -23,18 +23,8 @@ branch:
           description: "Node.js 版本"
           default: "18.20.8"
           required: true
-#        node21Version:
-#          name: "Node.js 21.x 版本"
-#          description: "Node.js 21.x 版本"
-#          default: "21.7.3"
-#          required: true
-#        node20Version:
-#          name: "Node.js 20.x 版本"
-#          description: "Node.js 20.x 版本"
-#          default: "20.19.3"
-#          required: true
-#        node18Version:
-#          name: "Node.js 18.x 版本"
-#          description: "Node.js 18.x 版本"
-#          default: "18.20.8"
-#          required: true
+        PLATFORM:  
+          name: "编译平台"
+          description: "编译平台，多个用逗号分隔"
+          default: "linux/amd64,linux/arm64,linux/ppc64le,linux/s390x"
+          required: true