feat: update build php image cnb yaml

Author: zhengkunwang223

.cnb.yml

@@ -39,6 +39,6 @@ main:
           script: docker buildx build 
               --platform $PLATFORM
               -t $IMAGE_TAG 
-              -f php/$PHP_VERSION/Dockerfile 
-              php/$PHP_VERSION/ 
+              -f php/$DIR/Dockerfile 
+              php/$DIR/ 
               --push

.cnb/web_trigger.yml

@@ -11,6 +11,11 @@ branch:
             description: "PHP 版本"
             default: "7.2.34"
             required: true
+          DIR:
+            name: "文件目录"
+            description: "文件目录"
+            default: "72.34"
+            required: true
           PLATFORM:
             name: "编译平台"
             description: "编译平台，多个用逗号分隔"