[BugFix] Disable enable_backup_materialized_view by default since it's experimental (backport #57483) (backport #57490) (#57520)

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

Author: mergify[bot]

docs/en/administration/management/FE_configuration.md

@@ -1213,7 +1213,7 @@ ADMIN SET FRONTEND CONFIG ("key" = "value");
 
 ##### enable_backup_materialized_view
 
-- Default: true
+- Default: false
 - Type: Boolean
 - Unit: -
 - Is mutable: Yes

docs/ja/administration/management/FE_configuration.md

@@ -845,7 +845,7 @@ ADMIN SET FRONTEND CONFIG ("key" = "value");
 
 ##### enable_backup_materialized_view
 
-- デフォルト: true
+- デフォルト: false
 - タイプ: Boolean
 - 単位: -
 - 変更可能: はい

docs/zh/administration/management/FE_configuration.md

@@ -1205,7 +1205,7 @@ ADMIN SET FRONTEND CONFIG ("key" = "value");
 
 ##### enable_backup_materialized_view
 
-- 默认值：true
+- 默认值：false
 - 类型：Boolean
 - 单位：-
 - 是否动态：是

fe/fe-core/src/main/java/com/starrocks/common/Config.java

@@ -1328,7 +1328,7 @@ public class Config extends ConfigBase {
      * whether backup materialized views in backing databases. If not, will skip backing materialized views.
      */
     @ConfField(mutable = true)
-    public static boolean enable_backup_materialized_view = true;
+    public static boolean enable_backup_materialized_view = false;
 
     /**
      * Whether to display all task runs or only the newest task run in ShowMaterializedViews command to be