Add cvss_v4_vector to vulnerability entry

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 62.68%. Comparing base (d4139db) to head (4a50331). Report is 3 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #790 +/- ## ========================================== + Coverage 62.51% 62.68% +0.16% ========================================== Files 340 340 Lines 14146 14210 +64 ========================================== + Hits 8843 8907 +64 Misses 5303 5303 ```

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