chore(ci): use files parameter in codecov-action instead of file, which was deprecated and removed

[chengfang]

see https://github.com/codecov/codecov-action/tree/main?tab=readme-ov-file#arguments for codecov-action parameters.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.99%. Comparing base (14e60b8) to head (e8003b3).
Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #977      +/-   ##
==========================================
- Coverage   72.44%   71.99%   -0.46%     
==========================================
  Files          27       24       -3     
  Lines        3727     3642      -85     
==========================================
- Hits         2700     2622      -78     
+ Misses        885      880       -5     
+ Partials      142      140       -2     

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