[improve](cloud-mow)Make some mow calculating delete bitmap config mo…

…re reasonable (apache#46750)

be/src/common/config.cpp

@@ -867,8 +867,8 @@ DEFINE_Int64(delete_bitmap_agg_cache_capacity, "104857600");
 // The default delete bitmap cache is set to 100MB,
 // which can be insufficient and cause performance issues when the amount of user data is large.
 // To mitigate the problem of an inadequate cache,
-// we will take the larger of 0.5% of the total memory and 100MB as the delete bitmap cache size.
-DEFINE_String(delete_bitmap_dynamic_agg_cache_limit, "0.5%");
+// we will take the larger of 1.0% of the total memory and 100MB as the delete bitmap cache size.
+DEFINE_String(delete_bitmap_dynamic_agg_cache_limit, "1.0%");
 DEFINE_mInt32(delete_bitmap_agg_cache_stale_sweep_time_sec, "1800");
 
 // reference https://github.com/edenhill/librdkafka/blob/master/INTRODUCTION.md#broker-version-compatibility