chore(deps): update ruby:4 docker digest to d6c89d3

[renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
ruby	final	digest	2f4cbf8 → d6c89d3

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.60%. Comparing base (26a0478) to head (e94ffaf).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2696      +/-   ##
==========================================
- Coverage   71.63%   71.60%   -0.04%     
==========================================
  Files         164      164              
  Lines       12090    12090              
==========================================
- Hits         8661     8657       -4     
- Misses       2803     2805       +2     
- Partials      626      628       +2     

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