Incorrect run duration on multi-report widgets

### What happened?

When generating a report with several plugins, a report selector appears with one widget per plugin
These widget are displaying some information about the test run, including its duration

However the duration on the widget doesn't match the duration of the pipeline nor the duration displayed on the specific plugin reports:

I am running my test using several workers in playwright, it looks like the widget duration is the sum of all tests durations, whereas the report duration is the actual execution duration

### How can we reproduce it?

- Have a config with different plugins (in my case, i have 2 awesome, 1 allure classic, 1 allure2)
- Run playwright tests **with several workers** (in my case, 5)
- Generate the report

### What did you expect?

The duration displayed on the widgets should match the duration displayed on the actual reports

### Environment

- Allure 3 version: 3.17.0
- Node.js version: 22.11.0
- Playwright version: 1.63.0

### Additional context

_No response_

Reproduce the issue through the report selector and its per-plugin widgets using several Playwright workers and multiple plugins. Compare widget duration with the pipeline duration and the specific plugin reports; done means the widget duration matches the actual execution duration rather than the sum of test durations.

Written by the indexing model from the issue text.