task: aggregate data is missing one

### Environment

* Dubbo version: 3.2

### Steps to reproduce this issue

Pls. provide [GitHub address] to reproduce this issue.

### Expected Behavior

Two minutes of aggregate data is missing one item compared with direct count statistics

### Actual Behavior

RequestTotal in 2m is same as dubbo_provider_requests_total_aggregate

Start by reproducing the issue with Dubbo 3.2 and compare direct count statistics with RequestTotal and dubbo_provider_requests_total_aggregate over two minutes. Done means explaining the missing aggregate item and confirming that the two-minute aggregate count matches the direct count.

Written by the indexing model from the issue text.