update to julia1.9 on CI

[uncomfyhalomacro]

[codecov[bot]]

Codecov Report

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

Comparison is base (bfd8a43) 97.58% compared to head (c673d1a) 92.46%. Report is 1 commits behind head on main.

:exclamation: Current head c673d1a differs from pull request most recent head 8b409aa. Consider uploading reports for the commit 8b409aa to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #182      +/-   ##
==========================================
- Coverage   97.58%   92.46%   -5.12%     
==========================================
  Files         123      135      +12     
  Lines        1777     1712      -65     
==========================================
- Hits         1734     1583     -151     
- Misses         43      129      +86     

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