[improvement](deploy) Forbid LocalDeployManager drop node (#23875)

Forbid LocalDeployManager drop nodes to prevent errors in the cluster.info file from causing nodes to be dropped.

fe/fe-common/src/main/java/org/apache/doris/common/Config.java

@@ -2153,4 +2153,8 @@ public class Config extends ConfigBase {
     })
     public static long query_metadata_name_ids_timeout = 3;
 
+    @ConfField(mutable = true, masterOnly = true, description = {
+            "是否禁止LocalDeployManager删除节点",
+            "Whether to disable LocalDeployManager drop node"})
+    public static boolean disable_local_deploy_manager_drop_node = true;
 }