GitHub Actions: fix macos-13 failure due to python@3.12

[codecov[bot]]

Codecov Report

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

Project coverage is 85.37%. Comparing base (45f200c) to head (e638cf9). Report is 2 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #3955 +/- ## ======================================= Coverage 85.37% 85.37% ======================================= Files 235 235 Lines 56451 56458 +7 ======================================= + Hits 48193 48200 +7 Misses 8258 8258 ```

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[masatake]

Thank you.