build: bump unxt minversion

[codecov[bot]]

Codecov Report

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

Project coverage is 95.73%. Comparing base (024758a) to head (511a9be). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #181 +/- ## ======================================= Coverage 95.73% 95.73% ======================================= Files 70 70 Lines 2721 2721 ======================================= Hits 2605 2605 Misses 116 116 ```

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