drop inputs passed to codecov-action

[skshetry]

It can already search and find these coverage files, there's no need to specify them explicitly. On v5, they also deprecated the file option and renamed to files, which adds noisy warnings in CI.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.08%. Comparing base (2431ec6) to head (991dc14).
Report is 49 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10740      +/-   ##
==========================================
+ Coverage   90.68%   91.08%   +0.40%     
==========================================
  Files         504      504              
  Lines       39795    39970     +175     
  Branches     3141     3157      +16     
==========================================
+ Hits        36087    36407     +320     
+ Misses       3042     2936     -106     
+ Partials      666      627      -39     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.