Bug description
Closed Findings metrics (https://demo.defectdojo.org/metrics?date=5&view=dashboard) does not correspond to the real closed findings. After a short analysis, it seems that the list of closed findings of 2025 (for example) only calculates findings closed on 2025 AND opened on 2025.

Steps to reproduce
Steps to reproduce the behavior:

1. Open a finding with a date in 2022
2. Close the same finding today
3. Navigate to the metric page, the closed finding won't be appearing as closed this year.

Expected behavior
Closed findings metrics should not depends on opening date, but only on closed date. If finding is closed today, it should be included in the stats even if opened 4 years ago.