Fix: fill-outline-color with feature-state

[qpincon]

Launch Checklist

fill-outline-color property using feature-state is broken. See #4234.

This PR only includes a failing test so far

• Briefly describe the changes in this PR.
• Include before/after visuals or gifs if this PR includes visual changes.
• Write tests for all new functionality.
• Document any changes to public APIs.
• Post benchmark scores.
• Add an entry to CHANGELOG.md under the ## main section.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.98%. Comparing base (d919ba3) to head (ee88c3a).
Report is 7 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #4241       +/-   ##
===========================================
- Coverage   87.73%   71.98%   -15.75%     
===========================================
  Files         242      241        -1     
  Lines       33081    33077        -4     
  Branches     2160     1419      -741     
===========================================
- Hits        29023    23810     -5213     
- Misses       3088     8023     +4935     
- Partials      970     1244      +274     

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