chore(deps): update charmbracelet in go.mod

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	Age	Confidence
github.com/charmbracelet/x/exp/golden	indirect	digest	444c5aa → 33beb0e
github.com/charmbracelet/x/exp/strings	indirect	minor	v0.0.0-20260126110915-444c5aa3ce8b → v0.1.0

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.55%. Comparing base (bb52504) to head (42ae8db).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #570   +/-   ##
=======================================
  Coverage   71.55%   71.55%           
=======================================
  Files          67       67           
  Lines        3537     3537           
=======================================
  Hits         2531     2531           
  Misses        863      863           
  Partials      143      143           

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