CLN: format with latest ruff

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 80.02%. Comparing base (9004ebb) to head (a687f21).

Files	Patch %	Lines
src/xtgeo/grid3d/_grid_import_xtgcpgeom.py	0.00%	0 Missing and 2 partials :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1185 +/- ## ========================================== - Coverage 80.03% 80.02% -0.01% ========================================== Files 98 98 Lines 13682 13680 -2 Branches 2201 2203 +2 ========================================== - Hits 10950 10948 -2 + Misses 2001 1999 -2 - Partials 731 733 +2 ```

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[KetilN]

LGTM