fix pytest_report_header, fixes #8232

[codecov-commenter]

Codecov Report

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

Project coverage is 82.52%. Comparing base (7511cb6) to head (394e819). Report is 3 commits behind head on 1.2-maint.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## 1.2-maint #8242 +/- ## ============================================= + Coverage 82.24% 82.52% +0.27% ============================================= Files 38 38 Lines 10838 10837 -1 Branches 2079 2079 ============================================= + Hits 8914 8943 +29 + Misses 1365 1342 -23 + Partials 559 552 -7 ```

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