fix: update goreleaser flag to --clean and update codecov to v7

[Fs02]

Replaces the deprecated --rm-dist flag with --clean in the release workflow, and updates codecov/codecov-action to v7 with token authentication.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (3612b4e) to head (27d1952).
⚠️ Report is 8 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #49   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines           61        53    -8     
=========================================
- Hits            61        53    -8     

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